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[ GLSA 200604-10 ] zgv, xzgv: Heap overflow
From: Sune Kloppenborg Jeppesen <jaervosz () gentoo org>
Date: Fri, 21 Apr 2006 06:45:15 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200604-10 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: zgv, xzgv: Heap overflow Date: April 21, 2006 Bugs: #127008 ID: 200604-10 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== xzgv and zgv attempt to decode JPEG images within the CMYK/YCCK colour space incorrectly, potentially resulting in the execution of arbitrary code. Background ========== xzgv and zgv are picture viewing utilities with a thumbnail based file selector. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 media-gfx/xzgv < 0.8-r2 >= 0.8-r2 2 media-gfx/zgv < 5.8 >= 5.8 ------------------------------------------------------------------- 2 affected packages on all of their supported architectures. ------------------------------------------------------------------- Description =========== Andrea Barisani of Gentoo Linux discovered xzgv and zgv allocate insufficient memory when rendering images with more than 3 output components, such as images using the YCCK or CMYK colour space. When xzgv or zgv attempt to render the image, data from the image overruns a heap allocated buffer. Impact ====== An attacker may be able to construct a malicious image that executes arbitrary code with the permissions of the xzgv or zgv user when attempting to render the image. Workaround ========== There is no known workaround at this time. Resolution ========== All xzgv users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=media-gfx/xzgv-0.8-r2" All zgv users should also upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=media-gfx/zgv-5.8" References ========== [ 1 ] CVE-2006-1060 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1060 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200604-10.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 2006 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
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- [ GLSA 200604-10 ] zgv, xzgv: Heap overflow Sune Kloppenborg Jeppesen (Apr 21)