Public Date:
1509224: CVE-2017-12183 xorg-x11-server: unvalidated lengths in XFIXES extension

The MITRE CVE dictionary describes this issue as:

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

Find out more about CVE-2017-12183 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 7.5
CVSS3 Base Metrics CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Adjacent Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Impact High
Availability Impact High

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 xorg-x11-server Will not fix
Red Hat Enterprise Linux 6 xorg-x11-server Will not fix
Red Hat Enterprise Linux 5 xorg-x11-server Will not fix


Red Hat would like to thank the Xorg project for reporting this issue.
Last Modified

CVE description copyright © 2017, The MITRE Corporation