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Gentoo Linux Security Advisory GLSA 200704-13
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http://security.gentoo.org/
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Severity: Normal
Title: File: Denial of Service
Date: April 17, 2007
Bugs: #174217
ID: 200704-13
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Synopsis
=======
A vulnerability has been discovered in file allowing for a denial of
service.
Background
=========
file is a utility that identifies a file format by scanning binary data
for patterns.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-apps/file == 4.20 >= 4.20-r1
Description
==========
Conor Edberg discovered an error in the way file processes a specific
regular expression.
Impact
=====
A remote attacker could entice a user to open a specially crafted file,
using excessive CPU ressources and possibly leading to a Denial of
Service. Note that this vulnerability could be also triggered through
an automatic file scanner like amavisd-new.
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-4.20-r1"
References
=========
[ 1 ] CVE-2007-2026
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2026
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200704-13.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
http://bugs.gentoo.org.
License
======
Copyright 2007 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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