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Gentoo alert 200411-05 (libxml2)

From:  Thierry Carrez <koon@gentoo.org>
To:  gentoo-announce@lists.gentoo.org
Subject:  [gentoo-announce] [ GLSA 200411-05 ] libxml2: Remotely exploitable buffer overflow
Date:  Tue, 02 Nov 2004 18:35:06 +0100
Cc:  bugtraq@securityfocus.com, full-disclosure@lists.netsys.com, security-alerts@linuxsecurity.com

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200411-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: libxml2: Remotely exploitable buffer overflow Date: November 02, 2004 Bugs: #69154 ID: 200411-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== libxml2 contains multiple buffer overflows which could lead to the execution of arbitrary code. Background ========== libxml2 is an XML parsing library written in C. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/libxml2 < 2.6.15 >= 2.6.15 Description =========== Multiple buffer overflows have been detected in the nanoftp and nanohttp modules. These modules are responsible for parsing URLs with ftp information, and resolving names via DNS. Impact ====== An attacker could exploit an application that uses libxml2 by forcing it to parse a specially-crafted XML file, potentially causing remote execution of arbitrary code. Workaround ========== There is no known workaround at this time. Resolution ========== All libxml2 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.6.15" References ========== [ 1 ] BugTraq Advisory http://www.securityfocus.com/archive/1/379383 [ 2 ] libxml2 ChangeLog http://www.xmlsoft.org/ChangeLog.html [ 3 ] CAN-2004-0989 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0989 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200411-05.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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