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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2010.0063 Moderate: bind security update 21 January 2010 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: bind Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 5 Impact/Access: Provide Misleading Information -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2010-0290 CVE-2010-0097 CVE-2009-4022 Reference: ESB-2010.0053 ESB-2009.1561 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2010-0062.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: bind security update Advisory ID: RHSA-2010:0062-02 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2010-0062.html Issue date: 2010-01-20 CVE Names: CVE-2010-0097 CVE-2010-0290 ===================================================================== 1. Summary: Updated bind packages that fix two security issues are now available for Red Hat Enterprise Linux 5. This update has been rated as having moderate security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: RHEL Desktop Workstation (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 3. Description: The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly. A flaw was found in the BIND DNSSEC NSEC/NSEC3 validation code. If BIND was running as a DNSSEC-validating resolver, it could incorrectly cache NXDOMAIN responses, as if they were valid, for records proven by NSEC or NSEC3 to exist. A remote attacker could use this flaw to cause a BIND server to return the bogus, cached NXDOMAIN responses for valid records and prevent users from retrieving those records (denial of service). (CVE-2010-0097) The original fix for CVE-2009-4022 was found to be incomplete. BIND was incorrectly caching certain responses without performing proper DNSSEC validation. CNAME and DNAME records could be cached, without proper DNSSEC validation, when received from processing recursive client queries that requested DNSSEC records but indicated that checking should be disabled. A remote attacker could use this flaw to bypass the DNSSEC validation check and perform a cache poisoning attack if the target BIND server was receiving such client queries. (CVE-2010-0290) All BIND users are advised to upgrade to these updated packages, which contain a backported patch to resolve these issues. After installing the update, the BIND daemon (named) will be restarted automatically. 4. Solution: Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 554851 - CVE-2010-0097 BIND DNSSEC NSEC/NSEC3 validation code could cause bogus NXDOMAIN responses 557121 - CVE-2010-0290 BIND upstream fix for CVE-2009-4022 is incomplete 6. Package List: Red Hat Enterprise Linux Desktop (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/bind-9.3.6-4.P1.el5_4.2.src.rpm i386: bind-9.3.6-4.P1.el5_4.2.i386.rpm bind-debuginfo-9.3.6-4.P1.el5_4.2.i386.rpm bind-libs-9.3.6-4.P1.el5_4.2.i386.rpm bind-sdb-9.3.6-4.P1.el5_4.2.i386.rpm bind-utils-9.3.6-4.P1.el5_4.2.i386.rpm x86_64: bind-9.3.6-4.P1.el5_4.2.x86_64.rpm bind-debuginfo-9.3.6-4.P1.el5_4.2.i386.rpm bind-debuginfo-9.3.6-4.P1.el5_4.2.x86_64.rpm bind-libs-9.3.6-4.P1.el5_4.2.i386.rpm bind-libs-9.3.6-4.P1.el5_4.2.x86_64.rpm bind-sdb-9.3.6-4.P1.el5_4.2.x86_64.rpm bind-utils-9.3.6-4.P1.el5_4.2.x86_64.rpm RHEL Desktop Workstation (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/bind-9.3.6-4.P1.el5_4.2.src.rpm i386: bind-chroot-9.3.6-4.P1.el5_4.2.i386.rpm bind-debuginfo-9.3.6-4.P1.el5_4.2.i386.rpm bind-devel-9.3.6-4.P1.el5_4.2.i386.rpm bind-libbind-devel-9.3.6-4.P1.el5_4.2.i386.rpm caching-nameserver-9.3.6-4.P1.el5_4.2.i386.rpm x86_64: bind-chroot-9.3.6-4.P1.el5_4.2.x86_64.rpm bind-debuginfo-9.3.6-4.P1.el5_4.2.i386.rpm bind-debuginfo-9.3.6-4.P1.el5_4.2.x86_64.rpm bind-devel-9.3.6-4.P1.el5_4.2.i386.rpm bind-devel-9.3.6-4.P1.el5_4.2.x86_64.rpm bind-libbind-devel-9.3.6-4.P1.el5_4.2.i386.rpm bind-libbind-devel-9.3.6-4.P1.el5_4.2.x86_64.rpm caching-nameserver-9.3.6-4.P1.el5_4.2.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/bind-9.3.6-4.P1.el5_4.2.src.rpm i386: bind-9.3.6-4.P1.el5_4.2.i386.rpm bind-chroot-9.3.6-4.P1.el5_4.2.i386.rpm bind-debuginfo-9.3.6-4.P1.el5_4.2.i386.rpm bind-devel-9.3.6-4.P1.el5_4.2.i386.rpm bind-libbind-devel-9.3.6-4.P1.el5_4.2.i386.rpm bind-libs-9.3.6-4.P1.el5_4.2.i386.rpm bind-sdb-9.3.6-4.P1.el5_4.2.i386.rpm bind-utils-9.3.6-4.P1.el5_4.2.i386.rpm caching-nameserver-9.3.6-4.P1.el5_4.2.i386.rpm ia64: bind-9.3.6-4.P1.el5_4.2.ia64.rpm bind-chroot-9.3.6-4.P1.el5_4.2.ia64.rpm bind-debuginfo-9.3.6-4.P1.el5_4.2.i386.rpm bind-debuginfo-9.3.6-4.P1.el5_4.2.ia64.rpm bind-devel-9.3.6-4.P1.el5_4.2.ia64.rpm bind-libbind-devel-9.3.6-4.P1.el5_4.2.ia64.rpm bind-libs-9.3.6-4.P1.el5_4.2.i386.rpm bind-libs-9.3.6-4.P1.el5_4.2.ia64.rpm bind-sdb-9.3.6-4.P1.el5_4.2.ia64.rpm bind-utils-9.3.6-4.P1.el5_4.2.ia64.rpm caching-nameserver-9.3.6-4.P1.el5_4.2.ia64.rpm ppc: bind-9.3.6-4.P1.el5_4.2.ppc.rpm bind-chroot-9.3.6-4.P1.el5_4.2.ppc.rpm bind-debuginfo-9.3.6-4.P1.el5_4.2.ppc.rpm bind-debuginfo-9.3.6-4.P1.el5_4.2.ppc64.rpm bind-devel-9.3.6-4.P1.el5_4.2.ppc.rpm bind-devel-9.3.6-4.P1.el5_4.2.ppc64.rpm bind-libbind-devel-9.3.6-4.P1.el5_4.2.ppc.rpm bind-libbind-devel-9.3.6-4.P1.el5_4.2.ppc64.rpm bind-libs-9.3.6-4.P1.el5_4.2.ppc.rpm bind-libs-9.3.6-4.P1.el5_4.2.ppc64.rpm bind-sdb-9.3.6-4.P1.el5_4.2.ppc.rpm bind-utils-9.3.6-4.P1.el5_4.2.ppc.rpm caching-nameserver-9.3.6-4.P1.el5_4.2.ppc.rpm s390x: bind-9.3.6-4.P1.el5_4.2.s390x.rpm bind-chroot-9.3.6-4.P1.el5_4.2.s390x.rpm bind-debuginfo-9.3.6-4.P1.el5_4.2.s390.rpm bind-debuginfo-9.3.6-4.P1.el5_4.2.s390x.rpm bind-devel-9.3.6-4.P1.el5_4.2.s390.rpm bind-devel-9.3.6-4.P1.el5_4.2.s390x.rpm bind-libbind-devel-9.3.6-4.P1.el5_4.2.s390.rpm bind-libbind-devel-9.3.6-4.P1.el5_4.2.s390x.rpm bind-libs-9.3.6-4.P1.el5_4.2.s390.rpm bind-libs-9.3.6-4.P1.el5_4.2.s390x.rpm bind-sdb-9.3.6-4.P1.el5_4.2.s390x.rpm bind-utils-9.3.6-4.P1.el5_4.2.s390x.rpm caching-nameserver-9.3.6-4.P1.el5_4.2.s390x.rpm x86_64: bind-9.3.6-4.P1.el5_4.2.x86_64.rpm bind-chroot-9.3.6-4.P1.el5_4.2.x86_64.rpm bind-debuginfo-9.3.6-4.P1.el5_4.2.i386.rpm bind-debuginfo-9.3.6-4.P1.el5_4.2.x86_64.rpm bind-devel-9.3.6-4.P1.el5_4.2.i386.rpm bind-devel-9.3.6-4.P1.el5_4.2.x86_64.rpm bind-libbind-devel-9.3.6-4.P1.el5_4.2.i386.rpm bind-libbind-devel-9.3.6-4.P1.el5_4.2.x86_64.rpm bind-libs-9.3.6-4.P1.el5_4.2.i386.rpm bind-libs-9.3.6-4.P1.el5_4.2.x86_64.rpm bind-sdb-9.3.6-4.P1.el5_4.2.x86_64.rpm bind-utils-9.3.6-4.P1.el5_4.2.x86_64.rpm caching-nameserver-9.3.6-4.P1.el5_4.2.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://www.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2010-0097.html https://www.redhat.com/security/data/cve/CVE-2010-0290.html http://www.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/security/team/contact/ Copyright 2010 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFLVx+GXlSAg2UNWIIRAvz/AJ9H7FhvT0s+dBH6WB0WLXqOi504SgCfSKp8 f06YLQzTf8bhbdzVt7HjWB4= =m8lV - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iD8DBQFLV4YsNVH5XJJInbgRAkyqAJ9BIg7b5NOYe/Dx7xAhUXe4O9aJEgCfZVBz MMTmEnS8PvwPALP+vw3QZhE= =kTvs -----END PGP SIGNATURE-----