CVE-2017-12186

Public Exploit

Description

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.

Categories

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.79% Top 30%
Vendor Advisory debian.org
Affected: The X.Org Foundation xorg-x11-server
Published at:
Updated at:

References

Link Tags
https://www.debian.org/security/2017/dsa-4000 third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1509216 issue tracking patch exploit vdb entry third party advisory
https://cgit.freedesktop.org/xorg/xserver/commit/?id=cad5a1050b7184d828aef9c1dd151c3ab649d37e third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2017-12186?
CVE-2017-12186 has been scored as a critical severity vulnerability.
How to fix CVE-2017-12186?
To fix CVE-2017-12186, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-12186 being actively exploited in the wild?
It is possible that CVE-2017-12186 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-12186?
CVE-2017-12186 affects The X.Org Foundation xorg-x11-server.
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