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CVE-2022-2320

Published: 12 July 2022

A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo requests. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. This flaw allows an attacker to escalate privileges and execute arbitrary code in the context of root.

Notes

AuthorNote
mdeslaur
xorg server is actually the xorg-server package
the xorg package only contains docs
xwayland package contains parts of xorg-server

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
xorg
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal Not vulnerable
(code not present)
impish Not vulnerable
(code not present)
jammy Not vulnerable
(code not present)
kinetic Not vulnerable
(code not present)
lunar Not vulnerable
(code not present)
trusty Does not exist

upstream Not vulnerable

xenial Not vulnerable
(code not present)
mantic Not vulnerable
(code not present)
xorg-hwe-16.04
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Not vulnerable

xenial Not vulnerable
(code not present)
mantic Does not exist

xorg-hwe-18.04
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Not vulnerable

xenial Does not exist

mantic Does not exist

xorg-server
Launchpad, Ubuntu, Debian
bionic
Released (2:1.19.6-1ubuntu4.11)
focal
Released (2:1.20.13-1ubuntu1~20.04.3)
impish
Released (2:1.20.13-1ubuntu1.2)
jammy
Released (2:21.1.3-2ubuntu2.1)
kinetic
Released (2:21.1.3-2ubuntu3)
lunar
Released (2:21.1.3-2ubuntu3)
trusty Needs triage

upstream Needs triage

xenial
Released (2:1.18.4-0ubuntu0.12+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic
Released (2:21.1.3-2ubuntu3)
xorg-server-hwe-16.04
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial
Released (2:1.19.6-1ubuntu4.1~16.04.6+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic Does not exist

xorg-server-hwe-18.04
Launchpad, Ubuntu, Debian
bionic
Released (2:1.20.8-2ubuntu2.2~18.04.7)
focal Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

xorg-server-lts-utopic
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

xorg-server-lts-vivid
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

xorg-server-lts-wily
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

xorg-server-lts-xenial
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

xwayland
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish
Released (2:21.1.2-0ubuntu1.2)
jammy
Released (2:22.1.1-1ubuntu0.1)
kinetic
Released (2:22.1.2-1ubuntu1)
lunar
Released (2:22.1.2-1ubuntu1)
trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic
Released (2:22.1.2-1ubuntu1)

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H