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Date: Sat, 10 Mar 2018 21:53:26 +0000
From: Salvatore Bonaccorso <carnil@...ian.org>
To: bugtraq@...urityfocus.com
Subject: [SECURITY] [DSA 4134-1] util-linux security update

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- -------------------------------------------------------------------------
Debian Security Advisory DSA-4134-1                   security@...ian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
March 10, 2018                        https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : util-linux
CVE ID         : CVE-2018-7738
Debian Bug     : 892179

Bjorn Bosselmann discovered that the umount bash completion from
util-linux does not properly handle embedded shell commands in a
mountpoint name. An attacker with rights to mount filesystems can take
advantage of this flaw for privilege escalation if a user (in particular
root) is tricked into using the umount completion while a specially
crafted mount is present.

For the stable distribution (stretch), this problem has been fixed in
version 2.29.2-1+deb9u1.

We recommend that you upgrade your util-linux packages.

For the detailed security status of util-linux please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/util-linux

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@...ts.debian.org
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