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Ubuntu: (Multiple Advisories) (CVE-2023-0494): X.Org X Server vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2023-0494): X.Org X Server vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/16/2023
Created
03/29/2023
Added
03/22/2023
Modified
04/10/2023

Description

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.

Solution(s)

  • ubuntu-upgrade-xserver-xorg-core
  • ubuntu-upgrade-xserver-xorg-core-hwe-16-04
  • ubuntu-upgrade-xserver-xorg-core-hwe-18-04
  • ubuntu-upgrade-xwayland
  • ubuntu-upgrade-xwayland-hwe-16-04
  • ubuntu-upgrade-xwayland-hwe-18-04

References

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