[ GLSA 200503-17 ] libexif: Buffer overflow vulnerability
Date: Sat, 12 Mar 2005 15:38:51 -0500
From: Luke Macken <lewk@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200503-17 ] libexif: Buffer overflow vulnerability
Message-ID: <20050312203851.GA2086@tomservo.hsd1.ma.comcast.net.>
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Gentoo Linux Security Advisory GLSA 200503-17
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http://security.gentoo.org/
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Severity: Normal
Title: libexif: Buffer overflow vulnerability
Date: March 12, 2005
Bugs: #84076
ID: 200503-17
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Synopsis
========
libexif fails to validate certain inputs, making it vulnerable to
buffer overflows.
Background
==========
libexif is a library for parsing, editing and saving EXIF data.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-libs/libexif < 0.5.12-r1 >= 0.5.12-r1
Description
===========
libexif contains a buffer overflow vulnerability in the EXIF tag
validation code. When opening an image with a specially crafted EXIF
tag, the lack of validation can cause applications linked to libexif to
crash.
Impact
======
A specially crafted EXIF file could crash applications making use of
libexif, potentially allowing the execution of arbitrary code with the
privileges of the user running the application.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All libexif users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/libexif-0.5.12-r1"
References
==========
[ 1 ] CAN-2005-0664
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0664
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200503-17.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 2005 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/2.0
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