From koon@gentoo.org Fri May 21 18:34:07 2004 From: Thierry Carrez To: gentoo-announce@lists.gentoo.org Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com, security-alerts@linuxsecurity.com Date: Thu, 20 May 2004 20:25:46 +0200 Subject: [ GLSA 200405-13 ] neon heap-based buffer overflow -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200405-13 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: neon heap-based buffer overflow Date: May 20, 2004 Bugs: #51490 ID: 200405-13 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A vulnerability potentially allowing remote execution of arbitrary code has been discovered in the neon library. Background ========== neon provides an HTTP and WebDAV client library. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/neon <= 0.24.5 >= 0.24.6 Description =========== Stefan Esser discovered a vulnerability in the code of the neon library : if a malicious date string is passed to the ne_rfc1036_parse() function, it can trigger a string overflow into static heap variables. Impact ====== Depending on the application linked against libneon and when connected to a malicious WebDAV server, this vulnerability could allow execution of arbitrary code with the rights of the user running that application. Workaround ========== There is no known workaround at this time. All users are advised to upgrade to the latest available version of neon. Resolution ========== All users of neon should upgrade to the latest stable version: # emerge sync # emerge -pv ">=net-misc/neon-0.24.6" # emerge ">=net-misc/neon-0.24.6" References ========== [ 1 ] E-matters advisory 06/2004 http://security.e-matters.de/advisories/062004.html [ 2 ] CAN-2004-0398 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0398 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200405-13.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 Technologies, 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 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFArPgqvcL1obalX08RAgn1AKCc8XQR4FtA2etyfxaP07xm0iNNgACginzg sV2XrN3YfqBU8Gq7pLw3G1w= =WSpd -----END PGP SIGNATURE-----