RLSA-2026:89730 Important: libX11 security update

The libX11 packages contain the core X11 protocol client library. Security Fixes: libX11: libX11: Heap-based buffer overflow via malicious X server CVE-2026-88806 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and other related information, refer ...

libX11 security update

An update is available for libX11. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The libX11 packages contain the core X11 protocol client library. Security...

jfrog-CVE-2023-43786-libX11_DoS

CVE-2023-43786 Proof-of-Concept Overview This is a DoS Proof-of-Concept of libX11 Denial of Service vulnerability CVE-2023-43786. It will trigger the integer overflow and cause an infinite loop. The vulnerable versions are: libX11 1.8.6 and below and libXpm 3.5.16. For a comprehensive...

Important: Red Hat Security Advisory: libX11 security update

An update for libX11 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

libX11: libX11: Heap-based buffer overflow via malicious X server

A flaw was found in libX11. A heap-based buffer overflow vulnerability exists during the handling of XkbGetMap replies. A remote attacker, by operating a malicious X server, could exploit this flaw to potentially execute arbitrary code or cause a denial of service on the client system. User...

ALSA-2026:89730 Important: libX11 security update

The libX11 packages contain the core X11 protocol client library. Security Fixes: libX11: libX11: Heap-based buffer overflow via malicious X server CVE-2026-88806 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and other related information, refer ...

libX11 security update

1.6.8-10 - CVE-2026-88806 libX11: libX11: Heap-based buffer overflow via malicious X server Resolves: https://issues.redhat.com/browse/RHEL-267125...

Important: libX11 security update

The libX11 packages contain the core X11 protocol client library. Security Fixes: libX11: libX11: Heap-based buffer overflow via malicious X server CVE-2026-88806 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and other related information, refer ...

RHEL 8 : libX11 (RHSA-2026:89730)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:89730 advisory. The libX11 packages contain the core X11 protocol client library. Security Fixes: libX11: libX11: Heap-based buffer overflow via malicious X server...

CLSA-2026-1792810818 libX11: Fix of CVE-2026-88806

CVE-2026-88806: check key action ranges in XkbReadKeyActions...

CLSA-2026-1792810382 libX11: Fix of CVE-2026-88806

CVE-2026-88806: check key action ranges in XkbReadKeyActions...

CLSA-2026-1792609205 libX11: Fix of 6 CVEs

CVE-2018-14599: fix off-by-one writes in XListExtensions, XGetFontPath and XListFonts - CVE-2018-14600: fix out-of-bounds write in XListExtensions and XGetFontPath - CVE-2018-14598: fix crash on invalid reply in XListExtensions and XGetFontPath - CVE-2021-31535: reject strings longer than...

CLSA-2026-1792607902 libX11: Fix of 6 CVEs

CVE-2018-14599: fix off-by-one writes in XListExtensions, XGetFontPath and XListFonts - CVE-2018-14600: fix out-of-bounds write in XListExtensions and XGetFontPath - CVE-2018-14598: fix crash on invalid reply in XListExtensions and XGetFontPath - CVE-2021-31535: reject strings longer than...

FreeBSD : libX11 -- multiple vulnerabilities (fbf59c13-ca23-11f1-ada1-ac5afc632ba3)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the fbf59c13-ca23-11f1-ada1-ac5afc632ba3 advisory. X.Org reports: Multiple issues have been found in the X client library implementations publish...

libX11 -- multiple vulnerabilities

X.Org reports: Multiple issues have been found in the X client library implementations published by X.Org for which we are releasing security fixes for. CVE-2026-88806: Out-of-bounds write vulnerability in libX11's XKB X Keyboard Extension action parser CVE-2026-94283: Out-of-bounds read...

[slackware-security] libX11

New libX11 packages are available for Slackware 15.0 and -current to fix security issues. Here are the details from the Slackware 15.0 ChangeLog: patches/packages/libX11-1.8.14-i586-1slack15.0.txz: Upgraded. This update fixes security issues: ximcp: bound XIMOPENREPLY attribute lengths. ximcp:...

CVE-2026-88806 affecting package libX11 for versions less than 1.8.7-2

CVE-2026-88806 affecting package libX11 for versions less than 1.8.7-2. A patched version of the package is available...

OESA-2026-4250 libX11 security update

Core X11 protocol client library. Security Fixes: A malicious X server could exploit a buffer overflow in libX11 before 1.8.14 during handling of XkbGetMap overflowing the keysymmap.CVE-2026-88806 An out-of-bounds read vulnerability in libX11's XIM X Input Method attribute parser in libX11 before...

OESA-2026-4249 libX11 security update

Core X11 protocol client library. Security Fixes: A malicious X server could exploit a buffer overflow in libX11 before 1.8.14 during handling of XkbGetMap overflowing the keysymmap.CVE-2026-88806 An out-of-bounds read vulnerability in libX11's XIM X Input Method attribute parser in libX11 before...

OESA-2026-4247 libX11 security update

Core X11 protocol client library. Security Fixes: A malicious X server could exploit a buffer overflow in libX11 before 1.8.14 during handling of XkbGetMap overflowing the keysymmap.CVE-2026-88806 An out-of-bounds read vulnerability in libX11's XIM X Input Method attribute parser in libX11 before...