|
|
--cYtjc4pxslFTELvY
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200706-01
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal
Title: libexif: Integer overflow vulnerability
Date: June 05, 2007
Bugs: #178081
ID: 200706-01
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
=======
libexif fails to handle Exif (EXchangeable Image File) data inputs,
making it vulnerable to an integer overflow.
Background
=========
libexif is a library for parsing, editing and saving Exif data.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-libs/libexif < 0.6.15 >= 0.6.15
Description
==========
Victor Stinner reported an integer overflow in the
exif_data_load_data_entry() function from file exif-data.c while
handling Exif data.
Impact
=====
An attacker could entice a user to process a file with specially
crafted Exif extensions with an application making use of libexif,
which will trigger the integer overflow and potentially execute
arbitrary code or crash the application.
Workaround
=========
There is no known workaround at this time.
Resolution
=========
All libexif users should upgrade to the latest version. Please note
that users upgrading from "<=media-libs/libexif-0.6.13" should also run
revdep-rebuild after their upgrade.
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/libexif-0.6.15"
# revdep-rebuild --library=/usr/lib/libexif.so
References
=========
[ 1 ] CVE-2007-2645
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2645
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200706-01.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
--cYtjc4pxslFTELvY
Content-Type: application/pgp-signature
Content-Disposition: inline
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (GNU/Linux)
iQEVAwUBRmWyVzvRww8BFPxFAQLo+wf/SrbmU9bsnwvoi0PdLZSRmNXsxJAcd3G9
UP2E1Vt912qd/3AkAnY+kgYm52Yjmon8PVVFsn+WkFOhSJT7ukjAR0fVLhHZy0+d
LNYM9WsCPUnfvQ87N3eQrX+ySm1zhFmYJFM3IWztNyHtC4VHRXEsqUmBIwyn03A0
K/JAAhaVYlPclxIxY5UGlTD8wjD5vG4HtP24LxvfGHOvKy1orgoN8ry2h28qJmoE
ZLcWSdw1EF5GPg17NbkoG/nLDaaFP//iV0dEHQoFW4TQeN/LQLOEKh+p7m68yXnY
yfgMHC5JDcYOvG+SC1LxJK83gsV5m8jIrQMezqZiNM8z6jcz+olTjQ==FbiS
-----END PGP SIGNATURE-----
--cYtjc4pxslFTELvY--