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CVE-2017-13721

Published: 9 October 2017

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.

Priority

Low

Cvss 3 Severity Score

4.7

Score breakdown

Status

Package Release Status
xorg-server-lts-xenial
Launchpad, Ubuntu, Debian
xenial Does not exist

zesty Does not exist

trusty
Released (2:1.18.3-1ubuntu2.3~trusty3)
upstream Needs triage

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=b95f25af141d33a65f6f821ea9c003f66a01e1f1
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-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-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

Severity score breakdown

Parameter Value
Base score 4.7
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H