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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.0733 Important: bind-dyndb-ldap security update 3 August 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: bind-dyndb-ldap Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 UNIX variants (UNIX, Linux, OSX) Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2012-3429 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2012-1139.html Comment: This advisory references vulnerabilities in products which run on platforms other than Red Hat. It is recommended that administrators running bind-dyndb-ldap check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: bind-dyndb-ldap security update Advisory ID: RHSA-2012:1139-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1139.html Issue date: 2012-08-03 CVE Names: CVE-2012-3429 ===================================================================== 1. Summary: An updated bind-dyndb-ldap package that fixes one security issue is now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 3. Description: The dynamic LDAP back end is a plug-in for BIND that provides back-end capabilities to LDAP databases. It features support for dynamic updates and internal caching that help to reduce the load on LDAP servers. A flaw was found in the way bind-dyndb-ldap performed the escaping of names from DNS requests for use in LDAP queries. A remote attacker able to send DNS queries to a named server that is configured to use bind-dyndb-ldap could use this flaw to cause named to exit unexpectedly with an assertion failure. (CVE-2012-3429) Red Hat would like to thank Sigbjorn Lie of Atea Norway for reporting this issue. All bind-dyndb-ldap users should upgrade to this updated package, which contains a backported patch to correct this issue. For the update to take effect, the named service must be restarted. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 5. Bugs fixed (http://bugzilla.redhat.com/): 842466 - CVE-2012-3429 bind-dyndb-ldap: named DoS via DNS query with $ in name 6. Package List: Red Hat Enterprise Linux Server (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/bind-dyndb-ldap-1.1.0-0.9.b1.el6_3.1.src.rpm i386: bind-dyndb-ldap-1.1.0-0.9.b1.el6_3.1.i686.rpm bind-dyndb-ldap-debuginfo-1.1.0-0.9.b1.el6_3.1.i686.rpm ppc64: bind-dyndb-ldap-1.1.0-0.9.b1.el6_3.1.ppc64.rpm bind-dyndb-ldap-debuginfo-1.1.0-0.9.b1.el6_3.1.ppc64.rpm s390x: bind-dyndb-ldap-1.1.0-0.9.b1.el6_3.1.s390x.rpm bind-dyndb-ldap-debuginfo-1.1.0-0.9.b1.el6_3.1.s390x.rpm x86_64: bind-dyndb-ldap-1.1.0-0.9.b1.el6_3.1.x86_64.rpm bind-dyndb-ldap-debuginfo-1.1.0-0.9.b1.el6_3.1.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/bind-dyndb-ldap-1.1.0-0.9.b1.el6_3.1.src.rpm i386: bind-dyndb-ldap-1.1.0-0.9.b1.el6_3.1.i686.rpm bind-dyndb-ldap-debuginfo-1.1.0-0.9.b1.el6_3.1.i686.rpm x86_64: bind-dyndb-ldap-1.1.0-0.9.b1.el6_3.1.x86_64.rpm bind-dyndb-ldap-debuginfo-1.1.0-0.9.b1.el6_3.1.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2012-3429.html https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2012 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFQGyY9XlSAg2UNWIIRAtqNAKC9NByGZ9gKxepNd7qvJRqOqMJFewCfQN5y LHmd4BBzRsrfB9xvEr/H/QM= =E/Ei - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBUBtMQu4yVqjM2NGpAQI8ARAAi1OxeaTnFDeIQ6QfLs+686ofdbKufDL0 XIZsnNU9afQQVIJtQsiKNKdqZUwVrF17Pv+ZsiwcPRKhdemZn6dpyY3xaxgXr3Ef Zp5P7P88xcv6fARfQUnAFpj6qa+nEOCajAHyPKvGaAbOyVmmg6fJFOYsLvyvozsa TWC0NqVP1OgaN4psTwRPAZjbzesYiARdC2oSXqnsiuSIux48t+++hjKaOJhtLQSP 5Qm9TqOeRTbQRWH3/NQDn2MYo9M65URJgv0pOli5/B0VvvRPC/A+OenavITIWiyR lnaZZRawqSoJXyTmWnLvAe4inNzZ6hN//UXYDJZa4OGwp5obGfvt2BYNTmMzw+Za YjLZSN8UL9ZkpPSjoAsUhr+sw8GLm4eQlZ15zhMjYe4STouAWit/Pc6WReBQHi3J UrupDMCSoGn5wnzuHvx1L7WICLse8pYwkqWrpIVObiKA8XGeO90wAv7pkIkevof8 ugrdg6qZhFJkuaGTL7aPnvx8Hf96AR9eqSgZqbG+x3rg0xyWfso8rz74DwCANUYb yDSMk/FX+7swK8BeXq8HCHhljhuV12qFZHGdjGxKI4PMgIscVZbye7+rRdMyYgsp wCCXC3UuNCVQMmmZTLwv5tMCAxTv2cMwDezbvZ0UmykdbpHUlJI5QpboHHWl7USE jMAT71Cjj8g= =4Q+C -----END PGP SIGNATURE-----