Use After Free Affecting xorg-server package, versions <21.1.7-r0
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Test your applications- Snyk ID SNYK-ALPINE320-XORGSERVER-7015427
- published 23 May 2024
- disclosed 27 Mar 2023
Introduced: 27 Mar 2023
CVE-2023-0494 Open this link in a new tabHow to fix?
Upgrade Alpine:3.20 xorg-server to version 21.1.7-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream xorg-server package and not the xorg-server package as distributed by Alpine.
See How to fix? for Alpine:3.20 relevant fixed versions and status.
A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be exploited by ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read and write into freed memory. This can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.