Уязвимость функции ProcXIGetSelectedEvents() сервера X Window System Xorg-server, позволяющая нарушитель получить доступ к конфиденциальным данным, нарушить их целостность, а также вызвать отказ в обслуживании

Множественные уязвимости xorg-x11-server-common

A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIGetSelectedEvents() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.

A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIGetSelectedEvents() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.

A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIGetSelectedEvents() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.

A heap-based buffer over-read vulnerability was found in the X.org ser ...

A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIGetSelectedEvents() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.

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

Security update for xwayland

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)

ELSA-2024-3261: tigervnc security update (IMPORTANT)

ELSA-2024-3258: xorg-x11-server security update (MODERATE)