Ubuntu update for thunderbird

1) Buffer overflow

EUVDB-ID: #VU58617

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-4129

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted website, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Security features bypass

EUVDB-ID: #VU59373

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-4140

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to an error in iframe sandbox implementation when processing XSLT markup. A remote attacker can bypass iframe sandbox and execute arbitrary JavaScript code in context of arbitrary window.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Input validation error

EUVDB-ID: #VU55679

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-29981

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient validation of user-supplied input when lowering/register allocation during live range splitting. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger register confusion failures in JITted code and execute arbitrary code on the system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Type Confusion

EUVDB-ID: #VU55687

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-29982

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to incorrect JIT optimization and a type confusion error. A remote attacker can trick the victim to open a specially crafted web page and read a single bit of memory.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Insufficient UI Warning of Dangerous Operations

EUVDB-ID: #VU55686

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-29987

CWE-ID: CWE-357 - Insufficient UI Warning of Dangerous Operations

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to the way Firefox displays permission panels. After requesting multiple permissions, and closing the first permission panel, subsequent permission panels will be displayed in a different position but still record a click in the default location, making it possible to trick a user into accepting a permission they did not want to.

Note, the vulnerability affects Linux installations only.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) HTTP response splitting

EUVDB-ID: #VU55935

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-29991

CWE-ID: CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform HTTP splitting attacks.

The vulnerability exists due to the affected software incorrectly accepts a newline in a HTTP/3 header, interpretting it as two separate headers. A remote attacker can perform a header splitting attack against servers using HTTP/3.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Buffer overflow

EUVDB-ID: #VU56376

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38495

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Use-after-free

EUVDB-ID: #VU57064

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38496

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error during operations on MessageTasks. A remote attacker can trick the victim to visit a specially crafted web page, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) Origin validation error

EUVDB-ID: #VU57066

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38497

CWE-ID: CWE-346 - Origin Validation Error

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to an error, which can cause a plain-text validation message to overlaid on another origin through the use of reportValidity() and window.open(). A remote attacker can perform a spoofing attack.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Use-after-free

EUVDB-ID: #VU57067

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38498

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in the nsLanguageAtomService object. A remote attacker can trick the victim to open a specially crafted website, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) Memory corruption

EUVDB-ID: #VU57065

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38500

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can trick the victim to visit a specially crafted web page, trigger a memory corruption and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

12) Buffer overflow

EUVDB-ID: #VU57068

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38501

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted website, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

13) Security features bypass

EUVDB-ID: #VU57876

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38503

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to the iframe sandbox rules were not correctly applied to XSLT stylesheets. A remote attacker can load use an iframe to bypass restrictions such as executing scripts or navigating the top-level frame.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

14) Use-after-free

EUVDB-ID: #VU57878

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38504

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when interacting with an HTML input element's file picker dialog with webkitdirectory set. A remote attacker can trick the victim to open a specially crafted website, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

15) Insufficient UI Warning of Dangerous Operations

EUVDB-ID: #VU57880

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38506

CWE-ID: CWE-357 - Insufficient UI Warning of Dangerous Operations

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attacks.

The vulnerability exists due to Firefox could have entered fullscreen mode without notification or warning to the user. A remote attacker can perform spoofing attacks on the browser UI.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

16) Security features bypass

EUVDB-ID: #VU57881

Risk: Low

CVSSv3.1: 3.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38507

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists in the Opportunistic Encryption feature of HTTP2, which allows a connection to be transparently upgraded to TLS while retaining the visual properties of an HTTP connection, including being same-origin with unencrypted connections on port 80. However, if a second encrypted port on the same IP address (e.g. port 8443) did not opt-in to opportunistic encryption; a network attacker could forward a connection from the browser from port 443 to port 8443, causing the browser to treat the content of port 8443 as same-origin with HTTP. As a result, a remote attacker can bypass Same-Origin-Policy on services hosted on other ports.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

17) Improper Restriction of Rendered UI Layers or Frames

EUVDB-ID: #VU57882

Risk: Low

CVSSv3.1: 3.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38508

CWE-ID: CWE-1021 - Improper Restriction of Rendered UI Layers or Frames

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to Firefox displays the form validity message in the correct location at the same time as a permission prompt (such as for geolocation). The validity message could have obscured the prompt, resulting in the user potentially being tricked into granting the permission.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

18) Improper Restriction of Rendered UI Layers or Frames

EUVDB-ID: #VU57883

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38509

CWE-ID: CWE-1021 - Improper Restriction of Rendered UI Layers or Frames

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of an unusual sequence of attacker-controlled events. A remote attacker can display a Javascript alert() dialog with arbitrary (although unstyled) contents over top of arbitrary webpage of the attacker's choosing.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

19) Buffer overflow

EUVDB-ID: #VU57888

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43534

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted webpage, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

20) Use-after-free

EUVDB-ID: #VU57889

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43535

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing HTTP/2 session object. A remote attacker can trick the victim to open a specially crafted website, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

21) Information disclosure

EUVDB-ID: #VU58585

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43536

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to URL leakage when executing asynchronous functions. A remote attacker can trick the victim to open a specially crafted web page and reveal the URL of the page that is being visited afterwards.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

22) Type conversion

EUVDB-ID: #VU58586

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43537

CWE-ID: CWE-704 - Type conversion

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a type conversion error when processing sizes from 64bit to 32bit integers when using structured clone. A remote attacker can trick the victim to visit a specially crafted web page, trigger a heap-based buffer overflow and execute arbitrary code on the system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

23) Spoofing attack

EUVDB-ID: #VU58607

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43538

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to a race in notification code. A remote attacker can hide the notification for pages that had received full screen and pointer lock access. Successful exploitation of the vulnerability may allow an attacker to perform spoofing attack.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

24) Use-after-free

EUVDB-ID: #VU58608

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43539

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in GC rooting when calling wasm instance methods. A remote attacker can trick the victim to open a specially crafted web page, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

25) Input validation error

EUVDB-ID: #VU58611

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43541

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient validation of user-supplied input when handling spaces in URLS with external protocol handlers. A remote attacker can trick the victim to click on a specially crafted link and pass unescaped input to a third-party application via URI handler.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

26) Information disclosure

EUVDB-ID: #VU58612

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43542

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the way Firefox handles XMLHttpRequest requests. A remote attacker can initiate a XMLHttpRequest and identify installed applications by probing error messages for loading external protocols.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

27) Security features bypass

EUVDB-ID: #VU58613

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43543

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to an error when handling CSP policies. Documents loaded with the CSP sandbox directive can escape the sandbox's script restriction by embedding additional content.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

28) Infinite loop

EUVDB-ID: #VU58615

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43545

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop when using Location API. A remote attacker can consume all available system resources and cause denial of service conditions.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

29) Use-after-free

EUVDB-ID: #VU59372

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22737

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a race condition playing audio files. A remote attacker can construct a specially crafted audio skin, trigger a use-after-free error and execute arbitrary code on the system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

30) Heap-based buffer overflow

EUVDB-ID: #VU59371

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22738

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in blendGaussianBlur when applying CSS filter. A remote attacker can trick the victim to open a specially crafted web page, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

31) Security features bypass

EUVDB-ID: #VU59381

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22739

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to missing throttling on external protocol launch dialog. A malicious websites can trick users into accepting launching a program to handle an external URL protocol.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

32) Use-after-free

EUVDB-ID: #VU59370

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22740

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in ChannelEventQueue::mOwner when releasing a network request handle. A remote attacker can trick the victim to open a specially crafted web page, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

33) Improper Restriction of Rendered UI Layers or Frames

EUVDB-ID: #VU59369

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22741

CWE-ID: CWE-1021 - Improper Restriction of Rendered UI Layers or Frames

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to an error resizing a popup while requesting fullscreen access. A remote attacker can trick the victim to open a specially crafted web page,  and make the browser unable to leave fullscreen mode.

Successful exploitation of the vulnerability may allow an attacker to perform spoofing attack.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

34) Out-of-bounds write

EUVDB-ID: #VU59368

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22742

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input, when inserting text while in edit mode. A remote attacker can create a specially crafted website, trick the victim into opening it and insert specially crafted input in the edit mode, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

35) Improper Restriction of Rendered UI Layers or Frames

EUVDB-ID: #VU59367

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22743

CWE-ID: CWE-1021 - Improper Restriction of Rendered UI Layers or Frames

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to an error when navigating from inside an iframe while requesting fullscreen access. A remote attacker can trick the victim to open a specially crafted web page,  and make the browser unable to leave fullscreen mode.

Successful exploitation of the vulnerability may allow an attacker to perform spoofing attack.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

36) Information disclosure

EUVDB-ID: #VU59377

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22745

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to Securitypolicyviolation events leak cross-origin information for frame-ancestors violations. A remote attacker can gain access to sensitive data.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

37) Input validation error

EUVDB-ID: #VU59379

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22747

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of empty pkcs7 sequence, passed as part of the certificate data. A remote attacker can pass specially crafted certificate to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

38) Spoofing attack

EUVDB-ID: #VU59376

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22748

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data. Malicious websites could have confused Firefox into showing the wrong origin when asking to launch a program and handling an external URL protocol.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

39) Buffer overflow

EUVDB-ID: #VU59382

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22751

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted website, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

40) Cleartext transmission of sensitive information

EUVDB-ID: #VU57241

Risk: Medium

CVSSv3.1: 6.2 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38502

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to software ignores the configuration to require STARTTLS security for an SMTP connection. A remote attacker with ability to intercept network traffic can gain access to sensitive data.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

41) Security features bypass

EUVDB-ID: #VU58618

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43528

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to Thunderbird unexpectedly enabled JavaScript in the composition area. The JavaScript execution context was limited to this area and did not receive chrome-level privileges, but could be used as a stepping stone to further an attack with other vulnerabilities.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

42) Buffer overflow

EUVDB-ID: #VU59080

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-44538

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error within the olm_session_describe() function in libolm. A remote attacker send specially crafted messages to the application that is using the affected library, trigger buffer overflow and perform a denial of service (DoS) attack

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

43) Insufficient UI Warning of Dangerous Operations

EUVDB-ID: #VU59081

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-4126

CWE-ID: CWE-357 - Insufficient UI Warning of Dangerous Operations

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attacks.

The vulnerability exists in the way Thunderbird handles signed email messages. When receiving an OpenPGP/MIME signed email message that contains an additional outer MIME message layer, for example a message footer added by a mailing list gateway, Thunderbird only considered the inner signed message for the signature validity. This gave the false impression that the additional contents were also covered by the digital signature.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

44) Spoofing attack

EUVDB-ID: #VU58616

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43546

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data, when native cursor is zoomed. A remote attacker can perform cursor spoofing attack.

Mitigation

Update the affected package thunderbird to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

thunderbird (Ubuntu package): before 1:91.5.0+build1-0ubuntu0.18.04.1

CPE2.3

• cpe:2.3:o:canonical:thunderbird_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

http://ubuntu.com/security/notices/USN-5248-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.