PT-2023-6111 · Libx11+11 · Libx11+11

Yair Mizrahi · Published 2023-10-03 · Updated 2026-05-07 · CVE-2023-43787

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions libX11 (affected versions not specified)

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.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Heap Based Buffer Overflow

Integer Overflow

Weakness Enumeration

CWE-122

CWE-190

Related Identifiers

ALSA-2024:2145

ALSA-2024:2973

ALT-PU-2023-6106

ALT-PU-2023-6107

ALT-PU-2023-6108

ALT-PU-2023-6109

ALT-PU-2023-6144

ALT-PU-2023-6146

ALT-PU-2023-6468

ALT-PU-2023-6469

AZL-31322

BDU:2023-06816

CESA-2024_2973

CVE-2023-43787

DLA-3602-1

DLA-3603-1

DSA-5517-1

INFSA-2024_2145

INFSA-2024_2973

JLSEC-2026-475

MGASA-2023-0287

OESA-2023-1708

OPENSUSE-SU-2023_3963-1

OPENSUSE-SU-2024:13296-1

RHSA-2024:2145

RHSA-2024:2973

RHSA-2024_2145

RHSA-2024_2973

SUSE-SU-2023:3963-1

SUSE-SU-2023:3989-1

SUSE-SU-2024:2453-1

USN-6407-1

USN-6407-2

USN-6408-1

USN-6408-2

Affected Products

Alt Linux

Almalinux

Astra Linux

Centos

Linuxmint

Red Hat

Red Os

Rocky Linux

Suse

Ubuntu

Zvirt Node

Libx11

References · 108

• https://security-tracker.debian.org/tracker/CVE-2023-43787 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2023-0287 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2024:2145 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2024:2145 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2024:2973 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2023-43787 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2023-1023SE17 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2024:2973 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-43787 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-43788 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-43786 · Security Note
• https://osv.dev/vulnerability/CVE-2023-43787 · Vendor Advisory
• https://osv.dev/vulnerability/JLSEC-2026-475 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20231214SE16 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-5517-1 · Vendor Advisory