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[gentoo-announce] [ GLSA 201408-08 ] file: Denial of Service

Posted on 29 August 2014
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201408-08
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http://security.gentoo.org/
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Severity: Normal
Title: file: Denial of Service
Date: August 26, 2014
Bugs: #505534
ID: 201408-08

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Synopsis
========
A vulnerability in file could result in Denial of Service.

Background
==========
file is a utility that guesses a file format by scanning binary data
for patterns.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-apps/file < 5.15 >= 5.15

Description
===========
BEGIN regular expression in the awk script detector in
magic/Magdir/commands uses multiple wildcards with unlimited
repetitions.

Impact
======
A context-dependent attacker could entice a user to open a specially
crafted file, possibly resulting in a Denial of Service condition.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All file users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">= sys-apps/file-5.15"

References
==========
[ 1 ] CVE-2013-7345
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-7345

Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-201408-08.xml

Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======
Copyright 2014 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5


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