Уязвимость функции XkbAddGeomKeyAlias() компонента XKB реализации протокола Wayland для X.Org XWaylan и реализации сервера X Window System X.Org Server, позволяющая нарушителю вызвать отказ в обслуживании

A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the `CheckSetGeom()` and `XkbAddGeomKeyAlias` functions, allows an attacker to read uninitialized or out-of-bounds memory. An attacker with a connection to the X11 server, either locally or remotely, can exploit this without user interaction. This could lead to the disclosure of memory contents or cause a denial of service by crashing the server.

A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the `CheckSetGeom()` and `XkbAddGeomKeyAlias` functions, allows an attacker to read uninitialized or out-of-bounds memory. An attacker with a connection to the X11 server, either locally or remotely, can exploit this without user interaction. This could lead to the disclosure of memory contents or cause a denial of service by crashing the server.

A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the `CheckSetGeom()` and `XkbAddGeomKeyAlias` functions, allows an attacker to read uninitialized or out-of-bounds memory. An attacker with a connection to the X11 server, either locally or remotely, can exploit this without user interaction. This could lead to the disclosure of memory contents or cause a denial of service by crashing the server.

A flaw was found in the X.Org X server. This out-of-bounds read vulner ...

A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the `CheckSetGeom()` and `XkbAddGeomKeyAlias` functions, allows an attacker to read uninitialized or out-of-bounds memory. An attacker with a connection to the X11 server, either locally or remotely, can exploit this without user interaction. This could lead to the disclosure of memory contents or cause a denial of service by crashing the 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 xorg-x11-server

Security update for xorg-x11-server

Security update for xwayland

Security update for xwayland

Important: tigervnc security update

ELSA-2026-20590: xorg-x11-server security update (IMPORTANT)

ELSA-2026-19342: tigervnc security update (IMPORTANT)

ELSA-2026-22456: tigervnc security update (IMPORTANT)