CVE-2023-43785

Libx11: out-of-bounds memory access in _xkbreadkeysyms()

State: Published
Severity: 6.5 Medium
Published: Oct 10, 2023
Updated: Nov 6, 2025
Reserved: Sep 22, 2023

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N	redhat

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
libX11	before 1.8.7Affected
Red Hat Enterprise Linux 8Red Hat	0:1.6.8-8.el8 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:1.7.0-9.el9 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 7Red Hat

References

RHSA-2024:2145vendor-advisory
RHSA-2024:2973vendor-advisory
https://access.redhat.com/security/cve/CVE-2023-43785vdb-entry
RHBZ#2242252issue-tracking
https://security.netapp.com/advisory/ntap-20231103-0006/
https://lists.debian.org/debian-lts-announce/2023/10/msg00004.html

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