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Gentoo alert 200501-06 (tiff)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200501-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: tiff: New overflows in image decoding Date: January 05, 2005 Bugs: #75213 ID: 200501-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== An integer overflow has been found in the TIFF library image decoding routines and the tiffdump utility, potentially allowing arbitrary code execution. Background ========== The TIFF library contains encoding and decoding routines for the Tag Image File Format. It is called by numerous programs, including GNOME and KDE applications, to interpret TIFF images. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 media-libs/tiff < 3.7.1-r1 >= 3.7.1-r1 Description =========== infamous41md found a potential integer overflow in the directory entry count routines of the TIFF library (CAN-2004-1308). Dmitry V. Levin found another similar issue in the tiffdump utility (CAN-2004-1183). Impact ====== A remote attacker could entice a user to view a carefully crafted TIFF image file, which would potentially lead to execution of arbitrary code with the rights of the user viewing the image. This affects any program that makes use of the TIFF library, including many web browsers or mail readers. Workaround ========== There is no known workaround at this time. Resolution ========== All TIFF library users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=media-libs/tiff-3.7.1-r1" References ========== [ 1 ] CAN-2004-1183 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1183 [ 2 ] CAN-2004-1308 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1308 [ 3 ] iDEFENSE Advisory http://www.idefense.com/application/poi/display?id=174&... Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200501-06.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 (Log in to post comments)
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