This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig4C222933C61CB55EABD5DC23 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200502-30 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Low Title: cmd5checkpw: Local password leak vulnerability Date: February 25, 2005 Bugs: #78256 ID: 200502-30 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== cmd5checkpw contains a flaw allowing local users to access other users cmd5checkpw passwords. Background ========== cmd5checkpw is a checkpassword compatible authentication program that uses CRAM-MD5 authentication mode. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-mail/cmd5checkpw <= 0.22-r1 >= 0.22-r2 Description =========== Florian Westphal discovered that cmd5checkpw is installed setuid cmd5checkpw but does not drop privileges before calling execvp(), so the invoked program retains the cmd5checkpw euid. Impact ====== Local users that know at least one valid /etc/poppasswd user/password combination can read the /etc/poppasswd file. Workaround ========== There is no known workaround at this time. Resolution ========== All cmd5checkpw users should upgrade to the latest available version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-mail/cmd5checkpw-0.22-r2" Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200502-30.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 --------------enig4C222933C61CB55EABD5DC23 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFCH5j/vcL1obalX08RAsqDAJ44oZOKfpSJQkfYU5QjH5yXy5CwvACeJSxV iTFWAjUmwut3Nf45I+Yp5YM= =QiPc -----END PGP SIGNATURE----- --------------enig4C222933C61CB55EABD5DC23--