Ubuntu update for firefox



Risk High
Patch available YES
Number of vulnerabilities 7
CVE-ID CVE-2022-0843
CVE-2022-26381
CVE-2022-26382
CVE-2022-26383
CVE-2022-26384
CVE-2022-26385
CVE-2022-26387
CWE-ID CWE-119
CWE-416
CWE-200
CWE-357
CWE-264
CWE-367
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

firefox (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 7 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU61108

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-0843

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 firefox to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 21.10

firefox (Ubuntu package): before 98.0.2+build1-0ubuntu0.18.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5321-3


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) Use-after-free

EUVDB-ID: #VU61105

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-26381

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 HTML content A remote attacker can trigger a use-after-free by forcing a text reflow in an SVG object 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 firefox to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 21.10

firefox (Ubuntu package): before 98.0.2+build1-0ubuntu0.18.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5321-3


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) Information disclosure

EUVDB-ID: #VU61106

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-26382

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 an error in the Autofill tooltips implementation when the text is rendered using page fonts. A remote attacker can obtain potentially sensitive information via a side-channel attack.

Mitigation

Update the affected package firefox to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 21.10

firefox (Ubuntu package): before 98.0.2+build1-0ubuntu0.18.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5321-3


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) Insufficient UI Warning of Dangerous Operations

EUVDB-ID: #VU61102

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-26383

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to an error when resizing a popup after requesting fullscreen access. The popup would not display the fullscreen notification, which allows a remote attacker to perform spoofing attack.

Mitigation

Update the affected package firefox to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 21.10

firefox (Ubuntu package): before 98.0.2+build1-0ubuntu0.18.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5321-3


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) Security restrictions bypass

EUVDB-ID: #VU61103

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-26384

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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

The vulnerability exists due to a logic error when processing iframes. If an attacker can control the contents of an iframe sandboxed with allow-popups but not allow-scripts, it is possible to craft a link that, when clicked, would lead to JavaScript execution in violation of the sandbox.

Mitigation

Update the affected package firefox to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 21.10

firefox (Ubuntu package): before 98.0.2+build1-0ubuntu0.18.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5321-3


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) Use-after-free

EUVDB-ID: #VU61107

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-26385

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 thread shutdown. A remote attacker can force the user to close the thread, 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 firefox to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 21.10

firefox (Ubuntu package): before 98.0.2+build1-0ubuntu0.18.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5321-3


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) Time-of-check Time-of-use (TOCTOU) Race Condition

EUVDB-ID: #VU61104

Risk: Medium

CVSSv4.0: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-26387

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to a race condition when verifying signatures during Firefox add-on installation. A remote attacker can replace the underlying add-on file while the user was confirming the prompt and install a malicious add-on on the system.

Mitigation

Update the affected package firefox to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 21.10

firefox (Ubuntu package): before 98.0.2+build1-0ubuntu0.18.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5321-3


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.



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