CVE-2023-43785

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

Published Oct 10, 2023 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3602-1 libx11 security update
Debian DSA Debian DSA DSA-5517-1 libx11 security update
EUVD EUVD EUVD-2023-48162 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.
Ubuntu USN Ubuntu USN USN-6407-1 libx11 vulnerabilities
Ubuntu USN Ubuntu USN USN-6407-2 libx11 vulnerabilities
History
Type Values Removed Values Added
First Time appeared Redhat rhel Els
CPEs cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:rhel_els:6
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat rhel Els
Type Values Removed Values Added
Metrics epss

{'score': 0.00099}

epss

{'score': 0.00102}

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Nov 7, 2026, 11:32 AM
Reserved
Sep 22, 2023, 9:52 AM
Status
Modified
Published
Oct 10, 2023, 1:15 PM
Modified
Nov 7, 2026, 12:17 PM
Severity
Moderate
Public date
Oct 4, 2023, 12:00 AM