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Alpine Linux: CVE-2023-5574: Use After Free

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Alpine Linux: CVE-2023-5574: Use After Free

Severity
7
CVSS
(AV:L/AC:M/Au:S/C:C/I:C/A:C)
Published
10/25/2023
Created
08/23/2024
Added
08/22/2024
Modified
10/02/2024

Description

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.

Solution(s)

  • alpine-linux-upgrade-xorg-server
  • alpine-linux-upgrade-xwayland

References

  • https://attackerkb.com/topics/cve-2023-5574
  • CVE - 2023-5574
  • https://security.alpinelinux.org/vuln/CVE-2023-5574
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