CVE-2022-46344 Memory corruption in xorg-x11-server

What is CVE-2022-46344?

CVE-2022-46344 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 14 Dec 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in X.Org. This security flaw occurs because the handler for the XIChangeProperty request has a length-validation issues, resulting in out-of-bounds memory reads and potential information disclosure. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.

Weakness: CWE-125

Which versions are affected by CVE-2022-46344?

It affects 3 products.

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

How do I fix CVE-2022-46344?

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-2022-46344 being exploited?

There is no known exploitation of CVE-2022-46344 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as AZL-44550, DEBIAN-CVE-2022-46344, GHSA-jjf8-5xjq-fq8j, UBUNTU-CVE-2022-46344.