Все бюллетени/p8/ALT-PU-2017-2384-1
ALT-PU-2017-2384-1

Обновление пакета xorg-server в ветке p8

Версия1.18.4-alt1.M80P.5
Задание#190283
Опубликовано2017-10-06
Макс. серьёзностьHIGH
Серьёзность:

Закрытые проблемы (3)

CVE-2017-13721
MEDIUM4.7

In X.Org Server (aka xserver and xorg-server) before 1.19.4, an attacker authenticated to an X server with the X shared memory extension enabled can cause aborts of the X server or replace shared memory segments of other X clients in the same session.

Опубликовано: 2017-10-10Изменено: 2025-08-29
CVSS 2.0НИЗКАЯ 1.9
CVSS:2.0/AV:L/AC:M/Au:N/C:N/I:N/A:P
CVSS 3.xСРЕДНЯЯ 4.7
CVSS:3.x/CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Ссылки
CVE-2017-13723
HIGH7.8

In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overflow a global buffer, causing crashes of the X server or potentially other problems by injecting large or malformed XKB related atoms and accessing them via xkbcomp.

Опубликовано: 2017-10-10Изменено: 2025-08-29
CVSS 2.0СРЕДНЯЯ 4.6
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSS 3.xВЫСОКАЯ 7.8
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Ссылки
CVE-2017-2624
HIGH7.0

It was found that xorg-x11-server before 1.19.0 including uses memcmp() to check the received MIT cookie against a series of valid cookies. If the cookie is correct, it is allowed to attach to the Xorg session. Since most memcmp() implementations return after an invalid byte is seen, this causes a time difference between a valid and invalid byte, which could allow an efficient brute force attack.

Опубликовано: 2018-07-27Изменено: 2025-08-29
CVSS 2.0НИЗКАЯ 1.9
CVSS:2.0/AV:L/AC:M/Au:N/C:P/I:N/A:N
CVSS 3.xВЫСОКАЯ 7.0
CVSS:3.x/CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Ссылки