CVE-2018-14665

NameCVE-2018-14665
DescriptionA 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-4328-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xorg-server (PTS)jessie (security), jessie2:1.16.4-1+deb8u2fixed
stretch2:1.19.2-1+deb9u5fixed
stretch (security)2:1.19.2-1+deb9u4fixed
buster, sid2:1.20.3-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xorg-serversource(unstable)2:1.20.3-1
xorg-serversourcejessie(not affected)
xorg-serversourcestretch2:1.19.2-1+deb9u4DSA-4328-1

Notes

[jessie] - xorg-server <not-affected> (Vulnerable code not present)
Introduced by: https://gitlab.freedesktop.org/xorg/xserver/commit/032b1d79b7d04d47814a5b3a9fdd162249fea74c (1.19.0)
Fixed by: https://gitlab.freedesktop.org/xorg/xserver/commit/50c0cf885a6e91c0ea71fb49fa8f1b7c86fe330e

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