Ubuntu update for webkit2gtk



Risk Critical
Patch available YES
Number of vulnerabilities 6
CVE-ID CVE-2023-28204
CVE-2023-32373
CVE-2023-32393
CVE-2023-32435
CVE-2023-32439
CVE-2023-37450
CWE-ID CWE-125
CWE-416
CWE-119
CWE-843
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerability #2 is being exploited in the wild.
Vulnerability #4 is being exploited in the wild.
Vulnerability #5 is being exploited in the wild.
Vulnerability #6 is being exploited in the wild.
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

libjavascriptcoregtk-4.1-0 (Ubuntu package)
Other

libwebkit2gtk-4.1-0 (Ubuntu package)
Other

libjavascriptcoregtk-6.0-1 (Ubuntu package)
Operating systems & Components / Operating system package or component

libjavascriptcoregtk-4.0-18 (Ubuntu package)
Operating systems & Components / Operating system package or component

libwebkit2gtk-4.0-37 (Ubuntu package)
Operating systems & Components / Operating system package or component

libwebkitgtk-6.0-4 (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 6 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU76310

Risk: High

CVSSv4.0: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2023-28204

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition in WebKit. A remote attacker can trick the victim to visit a specially crafted webpage, trigger an out-of-bounds read error and read contents of memory on the system.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Update the affected package webkit2gtk to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

libjavascriptcoregtk-4.1-0 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkit2gtk-4.1-0 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libjavascriptcoregtk-6.0-1 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libjavascriptcoregtk-4.0-18 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkit2gtk-4.0-37 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkitgtk-6.0-4 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6264-1


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?

Yes. This vulnerability is being exploited in the wild.

2) Use-after-free

EUVDB-ID: #VU76312

Risk: Critical

CVSSv4.0: 8.6 [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:A/U:Red]

CVE-ID: CVE-2023-32373

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 WebKit. 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.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Update the affected package webkit2gtk to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

libjavascriptcoregtk-4.1-0 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkit2gtk-4.1-0 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libjavascriptcoregtk-6.0-1 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libjavascriptcoregtk-4.0-18 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkit2gtk-4.0-37 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkitgtk-6.0-4 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6264-1


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?

Yes. This vulnerability is being exploited in the wild.

3) Buffer overflow

EUVDB-ID: #VU77845

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-2023-32393

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 in WebKit. A remote attacker can trick the victim to open a specially crafted website, 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 webkit2gtk to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

libjavascriptcoregtk-4.1-0 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkit2gtk-4.1-0 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libjavascriptcoregtk-6.0-1 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libjavascriptcoregtk-4.0-18 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkit2gtk-4.0-37 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkitgtk-6.0-4 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6264-1


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) Buffer overflow

EUVDB-ID: #VU77609

Risk: Critical

CVSSv4.0: 8.6 [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:A/U:Red]

CVE-ID: CVE-2023-32435

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 in WebKit. A remote attacker can trick the victim to visit a specially crafted web page, trigger memory corruption and execute arbitrary code on the target system.

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

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Update the affected package webkit2gtk to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

libjavascriptcoregtk-4.1-0 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkit2gtk-4.1-0 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libjavascriptcoregtk-6.0-1 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libjavascriptcoregtk-4.0-18 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkit2gtk-4.0-37 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkitgtk-6.0-4 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6264-1


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?

Yes. This vulnerability is being exploited in the wild.

5) Type Confusion

EUVDB-ID: #VU77608

Risk: Critical

CVSSv4.0: 8.6 [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:A/U:Red]

CVE-ID: CVE-2023-32439

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

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

The vulnerability exists due to a type confusion error in WebKit. A remote attacker can trick the victim to open a specially crafted web page, trigger a type confusion error and execute arbitrary code on the target system.

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

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Update the affected package webkit2gtk to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

libjavascriptcoregtk-4.1-0 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkit2gtk-4.1-0 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libjavascriptcoregtk-6.0-1 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libjavascriptcoregtk-4.0-18 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkit2gtk-4.0-37 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkitgtk-6.0-4 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6264-1


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?

Yes. This vulnerability is being exploited in the wild.

6) Buffer overflow

EUVDB-ID: #VU78061

Risk: Critical

CVSSv4.0: 8.6 [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:A/U:Red]

CVE-ID: CVE-2023-37450

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 in WebKit. A remote attacker can create a specially crafted website, trick the victim into visiting 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.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Update the affected package webkit2gtk to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

libjavascriptcoregtk-4.1-0 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkit2gtk-4.1-0 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libjavascriptcoregtk-6.0-1 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libjavascriptcoregtk-4.0-18 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkit2gtk-4.0-37 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

libwebkitgtk-6.0-4 (Ubuntu package): before 2.40.4-0ubuntu0.22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6264-1


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?

Yes. This vulnerability is being exploited in the wild.



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