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Ubuntu: (Multiple Advisories) (CVE-2022-4283): X.Org X Server vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2022-4283): X.Org X Server vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
12/14/2022
Created
12/16/2022
Added
12/15/2022
Modified
03/22/2023

Description

A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests.. This issue can lead to local privileges elevation on systems where the X server is running 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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