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FreeBSD: VID-6CC63BF5-A727-4155-8EC4-68B626475E68 (CVE-2023-0494): xorg-server -- Security issue in the X server

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FreeBSD: VID-6CC63BF5-A727-4155-8EC4-68B626475E68 (CVE-2023-0494): xorg-server -- Security issue in the X server

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/07/2023
Created
02/11/2023
Added
02/09/2023
Modified
04/03/2023

Description

Details for this vulnerability have not been published by NIST at this point. Descriptions from software vendor advisories for this issue are provided below.

From VID-6CC63BF5-A727-4155-8EC4-68B626475E68:

The X.org project reports:

CVE-2023-0494/ZDI-CAN-19596: X.Org Server DeepCopyPointerClasses

use-after-free

A dangling pointer in DeepCopyPointerClasses can be exploited by

ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read/write into

freed memory.

Solution(s)

  • freebsd-upgrade-package-xephyr
  • freebsd-upgrade-package-xorg-nestserver
  • freebsd-upgrade-package-xorg-server
  • freebsd-upgrade-package-xorg-vfbserver
  • freebsd-upgrade-package-xwayland
  • freebsd-upgrade-package-xwayland-devel

References

  • CVE-2023-0494
  • SUSE-SU-2023:0282-1

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