Use After Free Affecting xorg-server package, versions <21.1.9-r0
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Test your applications- Snyk ID SNYK-ALPINE320-XORGSERVER-7015461
- published 23 May 2024
- disclosed 25 Oct 2023
Introduced: 25 Oct 2023
CVE-2023-5574 Open this link in a new tabHow to fix?
Upgrade Alpine:3.20 xorg-server to version 21.1.9-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 use-after-free flaw was found in xorg-x11-server-Xvfb. This issue occurs in Xvfb with a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode). If the pointer is warped from a screen 1 to a screen 0, a use-after-free issue may be triggered during shutdown or reset of the Xvfb server, allowing for possible escalation of privileges or denial of service.