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CVE-2017-12186

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 length validation in X-Resource extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.

Read the notes from the security team

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

Notes

mdeslaur

same commit as CVE-2017-12184

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