GLSA Advocate
Joined: 12 May 2004 Posts: 2663
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Posted: Wed Mar 07, 2018 7:26 pm Post subject: [ GLSA 201803-02 ] util-linux |
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Gentoo Linux Security Advisory
Title: util-linux: User-assisted execution of arbitrary code (GLSA 201803-02)
Severity: high
Exploitable: local, remote
Date: 2018-03-07
Bug(s): #649812
ID: 201803-02
Synopsis
A vulnerability was discovered in util-linux, which could
potentially lead to the execution of arbitrary code.
Background
util-linux is a suite of Linux programs including mount and umount,
programs used to mount and unmount filesystems.
Affected Packages
Package: sys-apps/util-linux
Vulnerable: < 2.30.2-r1
Unaffected: >= 2.30.2-r1
Architectures: All supported architectures
Description
It was discovered that the umount bash-completion as provided by
util-linux does not escap mount point paths.
Impact
An attacker controlling a volume label could entice a user with
privileges to mount/umount filesystems to use umount command with auto
completion, possibly resulting in execution of arbitrary code with root
privileges.
Workaround
Disable Bash-completion or remove
“/usr/share/bash-completion/completions/umount”.
Resolution
All util-linux users should upgrade to the latest version: Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/util-linux-2.30.2-r1"
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References
CVE-2018-7738 |
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