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CVE-2023-43785

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

Published: Oct 10, 2023Updated: Nov 4, 2025 Sources: CVE List NVD BDUCWE-787
6.5MEDIUM
NVD MITRE
EPSS Score
0.6%
Top 53.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-787CWE-125

Affected Products

x.org
oss-project·US
libx11On-premLibrary
Operating Systems
Red Hat
commercial·USaka redhat
Red Hat Enterprise Linux 8On-premOS
Operating Systems / linux-distro
fedoraproject
oss-project·USaka fedora project
fedoraOn-premOS
Operating Systems / linux-distro
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
АО «ИВК»
commercial·RUaka ivk
Альт 8 СПOn-premOS
Operating Systems / linux-distro
and 9 more affected products View all →

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

3 techniques
Collection
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://access.redhat.com/errata/RHSA-2024:2145
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:2973
access.redhat.com
https://access.redhat.com/security/cve/CVE-2023-43785
access.redhat.com
and 15 more references View all →

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