CVE-2022-46344
Published: 14 December 2022
Summary
CVE-2022-46344 is a high-severity Out-of-bounds Read (CWE-125) vulnerability in Redhat Enterprise Linux. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 24.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2022-46344 affects the X.Org X server and stems from insufficient length validation in the handler for the XIChangeProperty request. The flaw permits out-of-bounds memory reads, resulting in information disclosure that can be leveraged for further attacks.
An authenticated local user can trigger the issue against a privileged X server to obtain elevated privileges, while remote attackers may achieve code execution in ssh X11-forwarding sessions where the X server is reachable over the network. The vulnerability carries a CVSS 3.1 score of 8.8.
Advisories published by Red Hat and Fedora distributions reference the issue and provide updated packages. The associated EPSS score rose from a low baseline to a peak of 0.2598 on 2025-01-22 before receding, indicating a period of increased exploitation interest after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-49160
Vulnerability details
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…
more
where the X server is running privileged and remote code execution for ssh X forwarding sessions.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.