AZL-57292 CVE-2025-26594 affecting package xorg-x11-server 1.20.10-6

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...

USN-7299-1 xorg-server, xwayland vulnerabilities

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled certain memory operations. An attacker could use these issues to cause the X Server to crash, leading to a denial of service, or possibly execute arbitrary code...

GHSA-MQQF-4P7R-RF89 vulnerabilities

Vulnerabilities for packages: xorg-server...

GHSA-3FPG-J8CW-VCJQ vulnerabilities

Vulnerabilities for packages: xorg-server...

GHSA-CM2M-F7GC-HV64 vulnerabilities

Vulnerabilities for packages: xorg-server...

GHSA-Q6W6-RJJJ-5P52 vulnerabilities

Vulnerabilities for packages: xorg-server...

GHSA-49WX-9H9F-8C9G vulnerabilities

Vulnerabilities for packages: xorg-server...

GHSA-PCJV-393Q-RQF2 vulnerabilities

Vulnerabilities for packages: xorg-server...

GHSA-RCJ8-JX65-7C4R vulnerabilities

Vulnerabilities for packages: xorg-server...

GHSA-W668-XCXF-V3GG vulnerabilities

Vulnerabilities for packages: xorg-server...

GHSA-2X93-8973-5MGQ vulnerabilities

Vulnerabilities for packages: xorg-server...

GHSA-VX3H-CJ8W-2H2C vulnerabilities

Vulnerabilities for packages: xorg-server...

CVE-2025-26596

A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms differs from what is written in XkbWriteKeySyms, which may lead to a heap-based buffer overflow...

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...

CVE-2025-26599

An access to an uninitialized pointer flaw was found in X.Org and Xwayland. The function compCheckRedirect may fail if it cannot allocate the backing pixmap. In that case, compRedirectWindow will return a BadAlloc error without validating the window tree marked just before, which leaves the...

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-2025-26600

A use-after-free flaw was found in X.Org and Xwayland. When a device is removed while still frozen, the events queued for that device remain while the device is freed. Replaying the events will cause a use-after-free...

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...

CVE-2025-26597

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 groups, this will cause a buffer overflow because t...

CVE-2025-26598

An out-of-bounds write flaw was found in X.Org and Xwayland. The function GetBarrierDevice searches for the pointer device based on its device ID and returns the matching value, or supposedly NULL, if no match was found. However, the code will return the last element of the list if no matching...