CVE-2017-12186

Critical

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.

SeverityCritical

CVSS9.8

Exploit probability—

Product

Debian Linux

PublishedJan 24, 2018

First seenJan 24, 2018

Weakness typeCWE-391CWE-391

How to fix

Update

x.org x_server1.19.5 or later

Vendor advisories

debian.org/security/2017/dsa-4000

Affected products

Product	Affected versions	Fixed in
debian debian_linux	8.0, 9.0	—
x.org x_server	v < 1.19.5	1.19.5

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