A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the same non-refcounted glyphs. Consequently, ProcRenderAddGlyphs() may free a glyph, leading to a use-after-free scenario when the same glyph pointer is subsequently accessed. This flaw allows an authenticated attacker to execute arbitrary code on the system by sending a specially crafted request.

A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the same non-refcounted glyphs. Consequently, ProcRenderAddGlyphs() may free a glyph, leading to a use-after-free scenario when the same glyph pointer is subsequently accessed. This flaw allows an authenticated attacker to execute arbitrary code on the system by sending a specially crafted request.

A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the same non-refcounted glyphs. Consequently, ProcRenderAddGlyphs() may free a glyph, leading to a use-after-free scenario when the same glyph pointer is subsequently accessed. This flaw allows an authenticated attacker to execute arbitrary code on the system by sending a specially crafted request.

A use-after-free vulnerability was found in the ProcRenderAddGlyphs() ...

Security update for xorg-x11-server

A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the same non-refcounted glyphs. Consequently, ProcRenderAddGlyphs() may free a glyph, leading to a use-after-free scenario when the same glyph pointer is subsequently accessed. This flaw allows an authenticated attacker to execute arbitrary code on the system by sending a specially crafted request.

Уязвимость функции ProcRenderAddGlyphs() сервера X Window System Xorg-server, позволяющая нарушителю выполнить произвольный код

Security update for dri3proto, presentproto, wayland-protocols, xwayland

Security update for xwayland

Moderate: xorg-x11-server security update

Moderate: xorg-x11-server-Xwayland security update

Important: xorg-x11-server-Xwayland security update

Important: tigervnc security update

Moderate: xorg-x11-server security update

Important: tigervnc security update

Important: tigervnc security update

ELSA-2024-9122: xorg-x11-server security update (MODERATE)

ELSA-2024-9093: xorg-x11-server-Xwayland security update (MODERATE)

ELSA-2024-3343: xorg-x11-server-Xwayland security update (IMPORTANT)