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[ GLSA 200507-19 ] zlib: Buffer overflow
From: Sune Kloppenborg Jeppesen <jaervosz () gentoo org>
Date: Fri, 22 Jul 2005 07:32:52 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200507-19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: zlib: Buffer overflow Date: July 22, 2005 Bugs: #99751 ID: 200507-19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== zlib is vulnerable to a buffer overflow which could potentially lead to execution of arbitrary code. Background ========== zlib is a widely used free and patent unencumbered data compression library. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-libs/zlib < 1.2.3 >= 1.2.3 Description =========== zlib improperly handles invalid data streams which could lead to a buffer overflow. Impact ====== By creating a specially crafted compressed data stream, attackers can overwrite data structures for applications that use zlib, resulting in arbitrary code execution or a Denial of Service. Workaround ========== There is no known workaround at this time. Resolution ========== All zlib users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-libs/zlib-1.2.3" References ========== [ 1 ] Full Disclosure Announcement http://archives.neohapsis.com/archives/fulldisclosure/2005-07/0489.html [ 2 ] CAN-2005-1849 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1849 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200507-19.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
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- [ GLSA 200507-19 ] zlib: Buffer overflow Sune Kloppenborg Jeppesen (Jul 21)