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CVE-2017-12176

Publication date 12 October 2017

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

xorg-x11-server before 1.19.5 was missing extra length validation in ProcEstablishConnection function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.

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 2:1.19.3-1ubuntu1.3
16.04 LTS xenial
Fixed 2:1.18.4-0ubuntu0.7
14.04 LTS trusty
Fixed 2:1.15.1-0ubuntu2.11
xorg-server-hwe-16.04 17.04 zesty Not in release
16.04 LTS xenial
Fixed 2:1.19.3-1ubuntu1~16.04.4
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~trusty4

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 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3456-1
    • X.Org X server vulnerabilities
    • 17 October 2017

Other references