CVE-2017-13721

Publication date 9 October 2017

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

4.7 · Medium

Score breakdown

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.

Status

Package Ubuntu Release Status
xorg 17.04 zesty
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
xorg-hwe-16.04 17.04 zesty Not in release
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
xorg-server 17.04 zesty
Fixed 2:1.19.3-1ubuntu1.2
16.04 LTS xenial
Fixed 2:1.18.4-0ubuntu0.6
14.04 LTS trusty
Fixed 2:1.15.1-0ubuntu2.10
xorg-server-hwe-16.04 17.04 zesty Not in release
16.04 LTS xenial
Fixed 2:1.19.3-1ubuntu1~16.04.3
14.04 LTS trusty Not in release
xorg-server-lts-utopic 17.04 zesty Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
xorg-server-lts-vivid 17.04 zesty Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
xorg-server-lts-wily 17.04 zesty Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
xorg-server-lts-xenial 17.04 zesty Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty
Fixed 2:1.18.3-1ubuntu2.3~trusty3

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
xorg-server

Severity score breakdown

Parameter Value
Base score 4.7 · Medium
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

References

Related Ubuntu Security Notices (USN)

    • USN-3453-1
    • X.Org X server vulnerabilities
    • 12 October 2017

Other references