JLSEC-2026-475

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...

JLSEC-2026-473

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...

OESA-2026-1591 libX11 security update

Core X11 protocol client library. Security Fixes: A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of...

OESA-2026-1589 libX11 security update

Core X11 protocol client library. Security Fixes: A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of...

MiracleLinux 9 : libX11-1.7.0-9.el9 (AXSA:2024-8020:02)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2024-8020:02 advisory. libX11: out-of-bounds memory access in XkbReadKeySyms CVE-2023-43785 libX11: stack exhaustion from infinite recursion in PutSubImage CVE-2023-43786...

EUVD-2002-0513

Malware in sbrugna...

CLSA-2025-1745529850 libX11: Fix of CVE-2023-43786

CVE-2023-43786: fix stack exhaustion from infinite recursion in PutSubImage...

Security update for libX11

This update for libX11 fixes the following issues: CVE-2025-26597: improper resizing of key actions when nGroups is 0 can lead to buffer overflows in XkbChangeTypesOfKey bsc1237431. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdat...

GLSA-202407-21 : X.Org X11 library: Multiple Vulnerabilities

The remote host is affected by the vulnerability described in GLSA-202407-21 X.Org X11 library: Multiple Vulnerabilities Multiple vulnerabilities have been discovered in X.Org X11 library. Please review the CVE identifiers referenced below for details. Tenable has extracted the preceding...

X.Org X11 library: Multiple Vulnerabilities

Background X.Org is an implementation of the X Window System. The X.Org X11 library provides the X11 protocol library files. Description Multiple vulnerabilities have been discovered in X.Org X11 library. Please review the CVE identifiers referenced below for details. Impact Please review the...

libX11: stack exhaustion from infinite recursion in PutSubImage()

A vulnerability was found in libX11 due to an infinite loop within the PutSubImage function. This flaw allows a local user to consume all available system resources and cause a denial of service condition...

libX11: integer overflow in XCreateImage() leading to a heap overflow

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...

libX11: out-of-bounds memory access in _XkbReadKeySyms()

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...

Moderate: libXpm security update

X.Org X11 libXpm runtime library. Security Fixes: libXpm: out of bounds read in XpmCreateXpmImageFromBuffer CVE-2023-43788 libXpm: out of bounds read on XPM with corrupted colormap CVE-2023-43789 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and...

libX11: InitExt.c can overwrite unintended portions of the Display structure if the extension request leads to a buffer overflow

A vulnerability was found in libX11. The security flaw occurs because the functions in src/InitExt.c in libX11 do not check that the values provided for the Request, Event, or Error IDs are within the bounds of the arrays that those functions write to, using those IDs as array indexes. They trust...

libX11: InitExt.c can overwrite unintended portions of the Display structure if the extension request leads to a buffer overflow

A vulnerability was found in libX11. The security flaw occurs because the functions in src/InitExt.c in libX11 do not check that the values provided for the Request, Event, or Error IDs are within the bounds of the arrays that those functions write to, using those IDs as array indexes. They trust...

libX11: InitExt.c can overwrite unintended portions of the Display structure if the extension request leads to a buffer overflow

A vulnerability was found in libX11. The security flaw occurs because the functions in src/InitExt.c in libX11 do not check that the values provided for the Request, Event, or Error IDs are within the bounds of the arrays that those functions write to, using those IDs as array indexes. They trust...

AZL-31321 CVE-2023-43786 affecting package libX11 for versions less than 1.8.7-1

A vulnerability was found in libX11 due to an infinite loop within the PutSubImage function. This flaw allows a local user to consume all available system resources and cause a denial of service condition...

AZL-31320 CVE-2023-43785 affecting package libX11 for versions less than 1.8.7-1

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-CVE-2023-43786

A vulnerability was found in libX11 due to an infinite loop within the PutSubImage function. This flaw allows a local user to consume all available system resources and cause a denial of service condition...