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Gentoo alert 200411-08 (gd)

From:  Thierry Carrez <koon@gentoo.org>
To:  gentoo-announce@lists.gentoo.org
Subject:  [gentoo-announce] [ GLSA 200411-08 ] GD: Integer overflow
Date:  Wed, 03 Nov 2004 22:38:50 +0100
Cc:  bugtraq@securityfocus.com, full-disclosure@lists.netsys.com, security-alerts@linuxsecurity.com

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200411-08 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: GD: Integer overflow Date: November 03, 2004 Bugs: #69070 ID: 200411-08 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== The PNG image decoding routines in the GD library contain an integer overflow that may allow execution of arbitrary code with the rights of the program decoding a malicious PNG image. Background ========== The GD graphics library is an open source library which allows programmers to easily generate PNG, JPEG, GIF and WBMP images from many different programming languages. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 media-libs/gd < 2.0.32 >= 2.0.32 Description =========== infamous41md found an integer overflow in the memory allocation procedure of the GD routine that handles loading PNG image files. Impact ====== A remote attacker could entice a user to load a carefully crafted PNG image file in a GD-powered application, or send a PNG image to a web application which uses GD PNG decoding functions. This could potentially lead to execution of arbitrary code with the rights of the program loading the image. Workaround ========== There is no known workaround at this time. Resolution ========== All GD users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=media-libs/gd-2.0.32" References ========== [ 1 ] Original BugTraq advisory http://www.securityfocus.com/archive/1/379382 [ 2 ] CAN-2004-0990 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0990 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200411-08.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


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