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[ GLSA 200706-01 ] libexif: Integer overflow vulnerability
From: Raphael Marichez <falco () gentoo org>
Date: Tue, 5 Jun 2007 20:58:32 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 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
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- [ GLSA 200706-01 ] libexif: Integer overflow vulnerability Raphael Marichez (Jun 05)