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CVE-2017-13723

Published: 9 October 2017

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.

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
xorg
Launchpad, Ubuntu, Debian
trusty Does not exist
(trusty was not-affected [code not present])
upstream Needs triage

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

upstream Needs triage

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

xorg-server
Launchpad, Ubuntu, Debian
trusty
Released (2:1.15.1-0ubuntu2.10)
upstream Needs triage

xenial
Released (2:1.18.4-0ubuntu0.6)
zesty
Released (2:1.19.3-1ubuntu1.2)
Patches:
upstream: https://cgit.freedesktop.org/xorg/xserver/commit/?id=94f11ca5cf011ef123bd222cabeaef6f424d76ac
xorg-server-lts-utopic
Launchpad, Ubuntu, Debian
trusty Does not exist
(trusty was ignored [end of life])
upstream Needs triage

xenial Does not exist

zesty Does not exist

xorg-server-lts-vivid
Launchpad, Ubuntu, Debian
trusty Does not exist
(trusty was ignored [end of life])
upstream Needs triage

xenial Does not exist

zesty Does not exist

xorg-server-hwe-16.04
Launchpad, Ubuntu, Debian
trusty Does not exist

upstream Needs triage

xenial
Released (2:1.19.3-1ubuntu1~16.04.3)
zesty Does not exist

xorg-server-lts-wily
Launchpad, Ubuntu, Debian
trusty Does not exist
(trusty was ignored [end of life])
upstream Needs triage

xenial Does not exist

zesty Does not exist

xorg-server-lts-xenial
Launchpad, Ubuntu, Debian
trusty
Released (2:1.18.3-1ubuntu2.3~trusty3)
upstream Needs triage

xenial Does not exist

zesty Does not exist

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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H