CVE-2022-3550 X.org Server xkb.c _GetCountedString buffer overflow

What is CVE-2022-3550?

CVE-2022-3550 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 17 Oct 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability classified as critical was found in X.org Server. Affected by this vulnerability is the function _GetCountedString of the file xkb/xkb.c. The manipulation leads to buffer overflow. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-211051.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2022-3550?

It affects 3 products.

Products include Debian Debian Linux, Fedoraproject Fedora, X.org X Server.

How do I fix CVE-2022-3550?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-3550 being exploited?

There is no known exploitation of CVE-2022-3550 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-45042, DEBIAN-CVE-2022-3550, GHSA-h54w-qqq6-jp69, UBUNTU-CVE-2022-3550.