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 crash.

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 crash.

Xorg: xmayland: value overflow in xkbsetcompatmap()

A flaw was identified in the X.Org X server\u2019s X Keyboard (Xkb) ex ...

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 crash.

Security update for xorg-x11-server

Security update for xwayland

Security update for xorg-x11-server

Security update for xorg-x11-server

Security update for xorg-x11-server

Security update for xorg-x11-server

Security update for xwayland

Security update for xorg-x11-server

Moderate: xorg-x11-server security update

ELSA-2025-19623: xorg-x11-server-Xwayland update (MODERATE)

ELSA-2025-19489: tigervnc security update (IMPORTANT)

ELSA-2025-19435: xorg-x11-server-Xwayland security update (MODERATE)

ELSA-2025-19434: xorg-x11-server security update (MODERATE)

ELSA-2025-19433: xorg-x11-server update (MODERATE)

ELSA-2025-19432: xorg-x11-server-Xwayland security update (MODERATE)