CVE-2025-26594 X.org: xwayland: use-after-free of the root cursor

A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free...

CVE-2025-26594

A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free...

CVE-2025-26594

A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free...

CVE-2025-26594 X.org: xwayland: use-after-free of the root cursor

A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free...

CVE-2025-26594

A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free. Mitigation Mitigation for this issue is either not available or...

UBUNTU-CVE-2025-26595

A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size...

UBUNTU-CVE-2025-26601

A use-after-free flaw was found in X.Org and Xwayland. When changing an alarm, the values of the change mask are evaluated one after the other, changing the trigger values as requested, and eventually, SyncInitTrigger is called. If one of the changes triggers an error, the function will return...

PT-2025-7898

Name of the Vulnerable Software and Affected Versions X.Org and Xwayland affected versions not specified Description A use-after-free flaw was found in the software. This issue occurs when a device is removed while still frozen, causing events queued for that device to remain after the device is...

PT-2025-7897

Name of the Vulnerable Software and Affected Versions X.Org and Xwayland affected versions not specified Description An issue was found where the function compCheckRedirect may fail to allocate the backing pixmap, leading to a BadAlloc error. This error occurs without validating the window tree...

Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : X.Org X Server vulnerabilities (USN-7299-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7299-1 advisory. Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled certain memory operations. An attacker could use...

X.Org和Xwayland 缓冲区错误漏洞

X.Org is an open source free software from the X.Org Foundation.Xwayland is an open source communication protocol from Xwayland that specifies how a display server communicates with its clients. A buffer error vulnerability exists in X.Org and Xwayland that stems from the GetBarrierDevice functio...

xorg server -- Multiple vulnerabilities

The X.Org project reports: CVE-2025-26594: Use-after-free of the root cursor The root cursor is referenced in the xserver as a global variable. If a client manages to free the root cursor, the internal reference points to freed memory and causes a use-after-free. CVE-2025-26595: Buffer overflow i...

X.Org和Xwayland 资源管理错误漏洞

X.Org is an open source free software from the X.Org Foundation.Xwayland is an open source communication protocol from Xwayland that specifies how a display server communicates with its clients. A resource management error vulnerability exists in X.Org and Xwayland that stems from evaluating chan...

X.Org和Xwayland 安全漏洞

X.Org is an open source free software from the X.Org Foundation.Xwayland is an open source communication protocol from Xwayland that specifies how a display server communicates with its clients. A security vulnerability exists in X.Org and Xwayland that stems from an inconsistency between the...

PT-2025-7895

Name of the Vulnerable Software and Affected Versions X.Org and Xwayland affected versions not specified Description A buffer overflow flaw was found. The issue arises when the function XkbChangeTypesOfKey is called with a 0 group, which resizes the key symbols table to 0 but leaves the key actio...

PT-2025-7894

Name of the Vulnerable Software and Affected Versions X.Org and Xwayland affected versions not specified Description A heap overflow flaw was found in the computation of the length in XkbSizeKeySyms, which differs from what is written in XkbWriteKeySyms, potentially leading to a heap-based buffer...

X.Org和Xwayland 缓冲区错误漏洞

X.Org is an open source free software from the X.Org Foundation.Xwayland is an open source communication protocol from Xwayland that specifies how a display server communicates with its clients. A buffer error vulnerability exists in X.Org and Xwayland that stems from the compRedirectWindow...

X.Org和Xwayland 资源管理错误漏洞

X.Org is an open source free software from the X.Org Foundation.Xwayland is an open source communication protocol from Xwayland that specifies how a display server communicates with its clients. A resource management error vulnerability exists in X.Org and Xwayland that stems from a device being...

PT-2025-7899

Name of the Vulnerable Software and Affected Versions X.Org and Xwayland affected versions not specified Description A use-after-free flaw was found in the software. The issue occurs when changing an alarm, where the values of the change mask are evaluated one after the other. If one of the chang...

Astra Linux – Vulnerability in xwayland, xorg-server

A use-after-free flaw was identified in X.Org and Xwayland. When changing an alarm, the values of the change mask are evaluated one after the other, modifying the trigger values as required. Eventually, the SyncInitTrigger function is called. If one of these changes causes an error, the function...