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[ GLSA 200803-28 ] OpenLDAP: Denial of Service vulnerabilities
From: Pierre-Yves Rofes <py () gentoo org>
Date: Wed, 19 Mar 2008 23:56:02 +0100
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200803-28 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: OpenLDAP: Denial of Service vulnerabilities Date: March 19, 2008 Bugs: #197446, #209677 ID: 200803-28 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple Denial of Service vulnerabilities have been reported in OpenLDAP. Background ========== OpenLDAP Software is an open source implementation of the Lightweight Directory Access Protocol. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-nds/openldap < 2.3.41 >= 2.3.41 Description =========== The following errors have been discovered in OpenLDAP: * Tony Blake discovered an error which exists within the normalisation of "objectClasses" (CVE-2007-5707). * Thomas Sesselmann reported that, when running as a proxy-caching server the "add_filter_attrs()" function in servers/slapd/overlay/pcache.c does not correctly NULL terminate "new_attrs" (CVE-2007-5708). * A double-free bug exists in attrs_free() in the file servers/slapd/back-bdb/modrdn.c, which was discovered by Jonathan Clarke (CVE-2008-0658). Impact ====== A remote attacker can cause a Denial of Serivce by sending a malformed "objectClasses" attribute, and via unknown vectors that prevent the "new_attrs" array from being NULL terminated, and via a modrdn operation with a NOOP (LDAP_X_NO_OPERATION) control. Workaround ========== There is no known workaround at this time. Resolution ========== All OpenLDAP users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-nds/openldap-2.3.41" References ========== [ 1 ] CVE-2007-5707 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5707 [ 2 ] CVE-2007-5708 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5708 [ 3 ] CVE-2008-0658 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0658 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200803-28.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 2008 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/2.5 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFH4ZoCuhJ+ozIKI5gRAuZYAKCXAX4sXc39JTd83l6VwVfnHdMsZACfQVfi kTrjdz99Vifw47to09cOknQ= =0mt1 -----END PGP SIGNATURE----- _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
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- [ GLSA 200803-28 ] OpenLDAP: Denial of Service vulnerabilities Pierre-Yves Rofes (Mar 19)