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Amazon Linux AMI: CVE-2023-5574: Security patch for xorg-x11-server (ALAS-2023-1892)

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Amazon Linux AMI: CVE-2023-5574: Security patch for xorg-x11-server (ALAS-2023-1892)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
10/25/2023
Created
12/07/2023
Added
12/05/2023
Modified
12/05/2023

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)

  • amazon-linux-upgrade-xorg-x11-server

References

  • ALAS-2023-1892
  • CVE-2023-5574

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