Debian update for webkit2gtk

Published: 2023-12-12

Risk	Critical
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-42916 CVE-2023-42917
CWE-ID	CWE-125 CWE-119
Exploitation vector	Network
Public exploit	Vulnerability #1 is being exploited in the wild. Vulnerability #2 is being exploited in the wild.
Vulnerable software Subscribe	Debian Linux Operating systems & Components / Operating system webkit2gtk (Debian package) Operating systems & Components / Operating system package or component
Vendor	Debian

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU83605

Risk: Critical

CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-42916

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

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. A remote attacker can create a specially crafted website, trick the victim into opening it, trigger an out-of-bounds read and execute arbitrary code on the target system.

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

Mitigation

Update webkit2gtk package to one of the following versions: 2.42.3-1~deb11u1, 2.42.3-1~deb12u1.

Vulnerable software versions

Debian Linux: All versions

webkit2gtk (Debian package): before 2.42.3-1~deb12u1

External links

http://www.debian.org/security/2023/dsa-5575

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) Buffer overflow

EUVDB-ID: #VU83606