[SECURITY] Fedora 43 Update: xorg-x11-server-21.1.20-1.fc43

X.Org X11 X server...

xorg: xmayland: Use-after-free in XPresentNotify structure creation

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 condition. This can cause memory corruption or a crash, potentially allowing an...

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...

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 condition. This can cause memory corruption or a crash, potentially allowing an...

CVE-2025-62230

A flaw was discovered in the X.Org X server’s X Keyboard Xkb extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected...

AZL-69580 CVE-2025-62230 affecting package xorg-x11-server-Xwayland for versions less than 24.1.6-3

A flaw was discovered in the X.Org X server’s X Keyboard Xkb extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected...

EUVD-2025-36899

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 condition. This can cause memory corruption or a crash, potentially allowing an...

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 condition. This can cause memory corruption or a crash, potentially allowing an...

CVE-2025-62230 Xorg: xwayland: use-after-free in xkb client resource removal

A flaw was discovered in the X.Org X server’s X Keyboard Xkb extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected...

CVE-2025-62230

A flaw was discovered in the X.Org X server’s X Keyboard Xkb extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected...

CVE-2025-62230

A flaw was discovered in the X.Org X server’s X Keyboard Xkb extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected...

EUVD-2025-36898

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...

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...

CVE-2025-62231

The CVE-2025-62231 issue is a use-after-free/value overflow in the X.Org X server’s XkbSetCompatMap() that can overflow an unsigned short and cause memory corruption or a crash. Public advisories (ALMAS/ALAS) associate this with the Xorg X11/Xwayland stack and Xorg-server-Xwayland/Xorg components...

[SECURITY] Fedora 43 Update: xorg-x11-server-Xwayland-24.1.9-1.fc43

Xwayland is an X server for running X clients under Wayland...

Ubuntu 22.04 LTS / 24.04 LTS / 25.04 / 25.10 : X.Org X Server vulnerabilities (USN-7846-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.04 / 25.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7846-1 advisory. Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled certain memory operations. An attacker could use these...

SUSE 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 condition. This can cause memory corruption or a crash, potentially allowing an...

SUSE 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...

PT-2025-44228

Name of the Vulnerable Software and Affected Versions X.Org X Server and Xwayland versions 2:21.1.16-1ubuntu1.2 through 2:24.1.6-1ubuntu0.2 Description A flaw exists in the X.Org X server and Xwayland when handling X11 Present extension notifications. Improper error handling during notification...

PT-2025-44229

Name of the Vulnerable Software and Affected Versions X.Org X Server versions 2:21.1.16-1ubuntu1.2 and earlier X.Org X Server affected versions not specified Description The X.Org X Server contains flaws in memory handling and client resource cleanup. Specifically, the X Keyboard Xkb extension...