CVE-2022-3551 X.org Server xkb.c ProcXkbGetKbdByName memory leak

What is CVE-2022-3551?

CVE-2022-3551 is a low-severity denial of service 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, which was classified as problematic, has been found in X.org Server. Affected by this issue is the function ProcXkbGetKbdByName of the file xkb/xkb.c. The manipulation leads to memory leak. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211052.

Weakness: CWE-401, CWE-404

Which versions are affected by CVE-2022-3551?

It affects 3 products.

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

How do I fix CVE-2022-3551?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-3551 being exploited?

There is no known exploitation of CVE-2022-3551 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-44250, DEBIAN-CVE-2022-3551, GHSA-3j3c-w82w-2cmg, UBUNTU-CVE-2022-3551.