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CVE-2018-14665

6.6 · MEDIUM

A flaw was found in xorg-x11-server before 1.20.3.

Published Oct 25, 2018CWE-863EPSS 27.04%

Overview

CVE-2018-14665 is a medium-severity vulnerability. It was published on October 25, 2018 and has a CVSS 3.0 base score of 6.6 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 6.6, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check for -modulepath and -logfile options when starting Xorg. X server allows unprivileged users with the ability to log in to the system via physical console to escalate their privileges and run arbitrary code under root privileges.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refpacketstormsecurity.com/files/154942/Xorg-X11-Server-SUID-modulepath-Privilege-Escalation.htmlRefpacketstormsecurity.com/files/155276/Xorg-X11-Server-Local-Privilege-Escalation.htmlRefwww.securityfocus.com/bid/105741Refwww.securitytracker.com/id/1041948Refaccess.redhat.com/errata/RHSA-2018:3410Refbugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14665Refgitlab.freedesktop.org/xorg/xserver/commit/50c0cf885a6e91c0ea71fb49fa8f1b7c86fe330eRefgitlab.freedesktop.org/xorg/xserver/commit/8a59e3b7dbb30532a7c3769c555e00d7c4301170Reflists.x.org/archives/xorg-announce/2018-October/002927.htmlRefsecurity.gentoo.org/glsa/201810-09

How CyberStrike helps

Frequently asked questions

What is CVE-2018-14665?

CVE-2018-14665 is a medium-severity vulnerability. It was published on October 25, 2018 and has a CVSS 3.0 base score of 6.6 (MEDIUM).

How severe is CVE-2018-14665?

This vulnerability has a CVSS 3.0 base score of 6.6, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2018-14665?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-14665?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-14665 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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