Privilege Dropping / Lowering Errors Affecting xorg-x11-server-source package, versions <0:1.20.1-5.1.el7
Threat Intelligence
Snyk has a published code exploit for this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL7-XORGX11SERVERSOURCE-1504823
- published26 Jul 2021
- disclosed25 Oct 2018
Introduced: 25 Oct 2018
CVE-2018-14665 (opens in a new tab)How to fix?
Upgrade RHEL:7 xorg-x11-server-source to version 0:1.20.1-5.1.el7 or higher.
This issue was patched in RHSA-2018:3410.
NVD Description
Note: Versions mentioned in the description apply only to the upstream xorg-x11-server-source package and not the xorg-x11-server-source package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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.
References
- http://www.securityfocus.com/bid/105741
- 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://access.redhat.com/security/cve/CVE-2018-14665
- 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://security.gentoo.org/glsa/201810-09
- 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
- https://www.securepatterns.com/2018/10/cve-2018-14665-xorg-x-server.html
- https://lists.x.org/archives/xorg-announce/2018-October/002927.html
- https://access.redhat.com/errata/RHSA-2018:3410
- http://www.securitytracker.com/id/1041948
- https://usn.ubuntu.com/3802-1/
- https://www.exploit-db.com/exploits/46142