#VU88117 Heap-based buffer overflow in X.org Server - CVE-2024-31082

Vulnerability identifier: #VU88117

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-31082

CWE-ID: CWE-122

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
X.org Server
Server applications / Other server solutions

Vendor: X.org

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a boundary error within the ProcAppleDRICreatePixmap() function. A local user can trigger a heap-based buffer overflow and read system memory.

Note, the vulnerability affects only Xquartz server for MacOS systems.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

X.org Server: 21.0.99.1 - 21.1.11

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External links
https://lists.x.org/archives/xorg-announce/2024-April/003497.html
https://gitlab.freedesktop.org/xorg/xserver/-/commit/6c684d035c06fd41c727f

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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