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CVE-2021-4010

Published: 14 December 2021

A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcScreenSaverSuspend function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
xorg-server
Launchpad, Ubuntu, Debian
Upstream
Released (21.1.2)
Ubuntu 21.10 (Impish Indri)
Released (2:1.20.13-1ubuntu1.1)
Ubuntu 21.04 (Hirsute Hippo)
Released (2:1.20.11-1ubuntu1.2)
Ubuntu 20.04 LTS (Focal Fossa)
Released (2:1.20.13-1ubuntu1~20.04.2)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(code not present)
Ubuntu 16.04 ESM (Xenial Xerus) Not vulnerable
(code not present)
Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable
(code not present)
Patches:
Upstream: https://gitlab.freedesktop.org/xorg/xserver/-/commit/6c4c53010772e3cb4cb8acd54950c8eec9c00d21
xorg-server-hwe-16.04
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.10 (Impish Indri) Does not exist

Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Needs triage

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

xorg-server-hwe-18.04
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.10 (Impish Indri) Does not exist

Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (2:1.20.8-2ubuntu2.2~18.04.6)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

xwayland
Launchpad, Ubuntu, Debian
Upstream
Released (21.1.4)
Ubuntu 21.10 (Impish Indri)
Released (2:21.1.2-0ubuntu1.1)
Ubuntu 21.04 (Hirsute Hippo)
Released (2:21.1.1-0ubuntu1.1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Notes

AuthorNote
mdeslaur
xorg server is actually the xorg-server package
the xorg package only contains docs
xwayland package contains parts of xorg-server
This is ZDI-CAN-14951
looks like this was introduced by:
https://gitlab.freedesktop.org/xorg/xserver/-/commit/52048ce29f872192478fece3887b7bc1c8aace7d

References