CVE-2018-14665
First published: Wed Oct 10 2018(Updated: )
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.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| X.org Xorg-server | <1.20.3 | |
| Redhat Enterprise Linux Desktop | =7.0 | |
| Redhat Enterprise Linux Server | =7.0 | |
| Redhat Enterprise Linux Server Aus | =7.6 | |
| Redhat Enterprise Linux Server Eus | =7.6 | |
| Redhat Enterprise Linux Server Tus | =7.6 | |
| Redhat Enterprise Linux Workstation | =7.0 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 | |
| Debian Debian Linux | =9.0 | |
| redhat/xorg-x11-server | <1.20.3 | 1.20.3 |
| ubuntu/xorg-server | <2:1.19.6-1ubuntu4.2 | 2:1.19.6-1ubuntu4.2 |
| ubuntu/xorg-server | <2:1.20.1-3ubuntu2.1 | 2:1.20.1-3ubuntu2.1 |
| ubuntu/xorg-server-hwe-16.04 | <2:1.19.6-1ubuntu4.1~16.04.2 | 2:1.19.6-1ubuntu4.1~16.04.2 |
| debian/xorg-server | 2:1.20.11-1+deb11u13 2:21.1.7-3+deb12u7 2:21.1.12-1 |
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Reference Links
- http://packetstormsecurity.com/files/154942/Xorg-X11-Server-SUID-modulepath-Privilege-Escalation.html
- http://packetstormsecurity.com/files/155276/Xorg-X11-Server-Local-Privilege-Escalation.html
- http://www.securityfocus.com/bid/105741
- http://www.securitytracker.com/id/1041948
- https://access.redhat.com/errata/RHSA-2018:3410
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14665
- https://gitlab.freedesktop.org/xorg/xserver/commit/50c0cf885a6e91c0ea71fb49fa8f1b7c86fe330e
- https://gitlab.freedesktop.org/xorg/xserver/commit/8a59e3b7dbb30532a7c3769c555e00d7c4301170
- https://lists.x.org/archives/xorg-announce/2018-October/002927.html
- https://security.gentoo.org/glsa/201810-09
- https://usn.ubuntu.com/3802-1/
- https://www.debian.org/security/2018/dsa-4328
- https://www.exploit-db.com/exploits/45697/
- https://www.exploit-db.com/exploits/45742/
- https://www.exploit-db.com/exploits/45832/
- https://www.exploit-db.com/exploits/45908/
- https://www.exploit-db.com/exploits/45922/
- https://www.exploit-db.com/exploits/45938/
- https://www.exploit-db.com/exploits/46142/
- https://www.securepatterns.com/2018/10/cve-2018-14665-xorg-x-server.html
- https://launchpad.net/bugs/cve/CVE-2018-14665
- https://gitlab.freedesktop.org/xorg/xserver/commit/032b1d79b7
- http://wiki.x.org
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1637761#c10
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1643131
- https://www.securepatterns.com/2018/10/cve-2018-14665-another-way-of.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1637761
- https://gitlab.freedesktop.org/xorg/xserver/commit/032b1d79b7d04d47814a5b3a9fdd162249fea74c
- https://security-tracker.debian.org/tracker/CVE-2018-14665
- https://ubuntu.com/security/notices/USN-3802-1
- https://www.cve.org/CVERecord?id=CVE-2018-14665
- https://nvd.nist.gov/vuln/detail/CVE-2018-14665
- https://ubuntu.com/security/CVE-2018-14665
Frequently Asked Questions
What is CVE-2018-14665?
CVE-2018-14665 is a vulnerability in xorg-x11-server before version 1.20.3 that allows unprivileged users to escalate their privileges and run arbitrary code under root.
How severe is CVE-2018-14665?
CVE-2018-14665 is considered a high severity vulnerability with a CVSS score of 6.6.
Which software versions are affected by CVE-2018-14665?
xorg-x11-server versions up to but excluding 1.20.3 are affected by CVE-2018-14665.
How can I fix CVE-2018-14665?
To fix CVE-2018-14665, update xorg-x11-server to version 1.20.3 or later.
Where can I find more information about CVE-2018-14665?
You can find more information about CVE-2018-14665 at the following references: [Packetstorm Security 1](http://packetstormsecurity.com/files/154942/Xorg-X11-Server-SUID-modulepath-Privilege-Escalation.html), [Packetstorm Security 2](http://packetstormsecurity.com/files/155276/Xorg-X11-Server-Local-Privilege-Escalation.html), [SecurityFocus](http://www.securityfocus.com/bid/105741).
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