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Gentoo alert 200409-12 (imagemagick)

From:  Thierry Carrez <koon@gentoo.org>
To:  gentoo-announce@gentoo.org
Subject:  [ GLSA 200409-12 ] ImageMagick, imlib, imlib2: BMP decoding buffer overflows
Date:  Wed, 08 Sep 2004 11:03:19 +0200
Cc:  bugtraq@securityfocus.com, full-disclosure@lists.netsys.com, security-alerts@linuxsecurity.com

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200409-12 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: ImageMagick, imlib, imlib2: BMP decoding buffer overflows Date: September 08, 2004 Bugs: #62309, #62487 ID: 200409-12 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== ImageMagick, imlib and imlib2 contain exploitable buffer overflow vulnerabilities in the BMP image processing code. Background ========== ImageMagick is a suite of image manipulation utilities and libraries used for a wide variety of image formats. imlib is a general image loading and rendering library. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 media-gfx/imagemagick < 6.0.7.1 >= 6.0.7.1 2 media-libs/imlib < 1.9.14-r2 >= 1.9.14-r2 3 media-libs/imlib2 < 1.1.2 >= 1.1.2 ------------------------------------------------------------------- 3 affected packages on all of their supported architectures. ------------------------------------------------------------------- Description =========== Due to improper bounds checking, ImageMagick and imlib are vulnerable to a buffer overflow when decoding runlength-encoded bitmaps. This bug can be exploited using a specially-crafted BMP image and could potentially allow remote code execution when this image is decoded by the user. Impact ====== A specially-crafted runlength-encoded BMP could lead ImageMagick and imlib to crash or potentially execute arbitrary code. Workaround ========== There is no known workaround at this time. Resolution ========== All ImageMagick users should upgrade to the latest version: # emerge sync # emerge -pv ">=media-gfx/imagemagick-6.0.7.1" # emerge ">=media-gfx/imagemagick-6.0.7.1" All imlib users should upgrade to the latest version: # emerge sync # emerge -pv ">=media-libs/imlib-1.9.14-r2" # emerge ">=media-libs/imlib-1.9.14-r2" All imlib2 users should upgrade to the latest version: # emerge sync # emerge -pv ">=media-libs/imlib2-1.1.2" # emerge ">=media-libs/imlib2-1.1.2" References ========== [ 1 ] CAN-2004-0817 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0817 [ 2 ] CAN-2004-0802 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0802 [ 3 ] ImageMagick Mailing List http://studio.imagemagick.org/pipermail/magick-developers... [ 4 ] SecurityTracker #1011104 http://securitytracker.com/alerts/2004/Aug/1011104.html [ 5 ] SecurityTracker #1011105 http://securitytracker.com/alerts/2004/Aug/1011105.html Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200409-12.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 2004 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/1.0 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFBPsrXvcL1obalX08RAiMWAJ9jRgAsJDcmL5JF/EZrn0BREPo5egCgpomO W24qtwrG1lisZYBSGyyWrRI= =XLhl -----END PGP SIGNATURE-----


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