X-Resource Extension Vulnerability in xorg-x11-server by X.Org
CVE-2017-12186

9.8CRITICAL

Key Information:

Vendor: The X.org Foundation
Status: Xorg-x11-server
Vendor: CVE Published:; 10 October 2017

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What is CVE-2017-12186?

The xorg-x11-server, prior to version 1.19.5, has a vulnerability in the X-Resource extension due to the absence of length validation. This flaw allows a malicious X client to exploit the server, potentially leading to crashes or arbitrary code execution. Proper validation mechanisms are crucial in preventing such security risks and maintaining server stability. For more details, refer to security advisories provided by Debian and Red Hat.