CVE-2023-43787

HIGH

libX11 - Memory Corruption

Title source: llm
STIX 2.1

Description

A vulnerability was found in libX11 due to an integer overflow within the XCreateImage() function. This flaw allows a local user to trigger an integer overflow and execute arbitrary code with elevated privileges.

References (8)

Core 8
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:2145
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:2973
Third Party Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2023-43787
Issue Tracking, Third Party Advisory issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2242254

Scores

CVSS v3 7.8
EPSS 0.0004
EPSS Percentile 12.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-190 CWE-122
Status published
Products (4)
fedoraproject/fedora 38
redhat/enterprise_linux 8.0
redhat/enterprise_linux 9.0
x.org/libx11 < 1.8.7
Published Oct 10, 2023
Tracked Since Feb 18, 2026