Out-of-bounds Write Affecting libX11-common package, versions <0:1.7.0-9.el9


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.67% (51st percentile)

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  • Snyk IDSNYK-RHEL9-LIBX11COMMON-12347950
  • published1 Sept 2025
  • disclosed4 Oct 2023

Introduced: 4 Oct 2023

CVE-2023-43785  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade RHEL:9 libX11-common to version 0:1.7.0-9.el9 or higher.
This issue was patched in RHSA-2024:2145.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libX11-common package and not the libX11-common package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system.

CVSS Base Scores

version 3.1