xorg: xmayland: Value overflow in XkbSetCompatMap()

A flaw was identified in the X.Org X server’s X Keyboard Xkb extension where improper bounds checking in the XkbSetCompatMap function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a cras...

Moderate: Red Hat Security Advisory: xorg-x11-server security update

An update for xorg-x11-server is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

xorg: xmayland: Value overflow in XkbSetCompatMap()

A flaw was identified in the X.Org X server’s X Keyboard Xkb extension where improper bounds checking in the XkbSetCompatMap function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a cras...

xorg: xmayland: Value overflow in XkbSetCompatMap()

A flaw was identified in the X.Org X server’s X Keyboard Xkb extension where improper bounds checking in the XkbSetCompatMap function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a cras...

OPENSUSE-SU-2025:20099-1 Security update for xwayland

This update for xwayland fixes the following issues: - CVE-2025-62229: Fixed use-after-free in XPresentNotify structures creation bsc1251958. - CVE-2025-62230: Fixed use-after-free in Xkb client resource removal bsc1251959. - CVE-2025-62231: Fixed value overflow in Xkb extension XkbSetCompatMap...

xorg: xmayland: Value overflow in XkbSetCompatMap()

A flaw was identified in the X.Org X server’s X Keyboard Xkb extension where improper bounds checking in the XkbSetCompatMap function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a cras...

Low: Red Hat Security Advisory: xorg-x11-server security update

An update for xorg-x11-server is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available...

CLSA-2025-1763138343 tigervnc: Fix of CVE-2025-62231

CVE-2025-62231: fix improper bounds checking in XkbSetCompatMap function to prevent unsigned short overflow and potential memory corruption or crash...

ALSA-2025:21035 Moderate: xorg-x11-server-Xwayland security update

Xwayland is an X server for running X clients under Wayland. Security Fixes: xorg: xmayland: Use-after-free in XPresentNotify structure creation CVE-2025-62229 xorg: xwayland: Use-after-free in Xkb client resource removal CVE-2025-62230 xorg: xmayland: Value overflow in XkbSetCompatMap...

Moderate: xorg-x11-server security update

X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon. Security Fixes: xorg: xmayland: Use-after-free in XPresentNotify structure creation CVE-2025-62229 xorg: xwayland:...

ALSA-2025:19435 Moderate: xorg-x11-server-Xwayland security update

Xwayland is an X server for running X clients under Wayland. Security Fixes: xorg: xmayland: Use-after-free in XPresentNotify structure creation CVE-2025-62229 xorg: xwayland: Use-after-free in Xkb client resource removal CVE-2025-62230 xorg: xmayland: Value overflow in XkbSetCompatMap...

SUSE-SU-2025:3909-1 Security update for xorg-x11-server

This update for xorg-x11-server fixes the following issues: - Fixed use-after-free in XPresentNotify structures creation CVE-2025-62229, bsc1251958 Fixed use-after-free in Xkb client resource removal CVE-2025-62230, bsc1251959 Fixed value overflow in Xkb extension XkbSetCompatMap CVE-2025-62231,...

SUSE SLED15: xorg-x11-server / xorg-x11-server-Xvfb / xorg-x11-server-extra / etc (SUSE-SU-2025:3872-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:3872-1 advisory. - Fixed use-after-free in XPresentNotify structures creation CVE-2025-62229, bsc1251958 - Fixed...

SUSE SLED15: xorg-x11-server / xorg-x11-server-Xvfb / xorg-x11-server-extra / etc (SUSE-SU-2025:3865-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:3865-1 advisory. - Fixed use-after-free in XPresentNotify structures creation CVE-2025-62229, bsc1251958 - Fixed use-after-free...

Security update for xwayland

This update for xwayland fixes the following issues: Fixed use-after-free in XPresentNotify structures creation CVE-2025-62229, bsc1251958 Fixed Use-after-free in Xkb client resource removal CVE-2025-62230, bsc1251959 Fixed Value overflow in Xkb extension XkbSetCompatMap CVE-2025-62231, bsc125196...

CVE-2025-62231

A flaw was identified in the X.Org X server’s X Keyboard Xkb extension where improper bounds checking in the XkbSetCompatMap function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a cras...

Xorg -- multiple vulnerabilities

https://access.redhat.com/errata/RHSA-2025:19432 reports: CVE-2025-62229: A flaw was found in the X.Org X server and Xwayland when processing X11 Present extension notifications. Improper error handling during notification creation can leave dangling pointers that lead to a use-after-free...

Security update for xorg-x11-server

This update for xorg-x11-server fixes the following issues: Fixed use-after-free in XPresentNotify structures creation CVE-2025-62229, bsc1251958 Fixed use-after-free in Xkb client resource removal CVE-2025-62230, bsc1251959 Fixed value overflow in Xkb extension XkbSetCompatMap CVE-2025-62231,...

UBUNTU-CVE-2025-62231

A flaw was identified in the X.Org X server’s X Keyboard Xkb extension where improper bounds checking in the XkbSetCompatMap function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a cras...

xorg-x11-server: tigervnc: heap-based buffer overflow privilege escalation vulnerability

A flaw was found in the X.org server. Due to improperly tracked allocation size in XkbSetCompatMap, a local attacker may be able to trigger a buffer overflow condition via a specially crafted payload, leading to denial of service or local privilege escalation in distributions where the X.org serv...