Red Hat Security Advisory: bind97 security update Security Advisory secalert@redhat.com Red Hat Security Response Team RHSA-2012:0717 Final 1 1 2012-06-07T16:33:00Z Current version 2012-06-07T16:34:00Z 2012-06-07T16:33:00Z Red Hat rhsa-to-cvrf 1.0.1484 2012-06-07T16:42:02Z Updated bind97 packages that fix two security issues are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 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 way BIND handled zero length resource data records. A malicious owner of a DNS domain could use this flaw to create specially-crafted DNS resource records that would cause a recursive resolver or secondary server to crash or, possibly, disclose portions of its memory. (CVE-2012-1667) A flaw was found in the way BIND handled the updating of cached name server (NS) resource records. A malicious owner of a DNS domain could use this flaw to keep the domain resolvable by the BIND server even after the delegation was removed from the parent DNS zone. With this update, BIND limits the time-to-live of the replacement record to that of the time-to-live of the record being replaced. (CVE-2012-1033) Users of bind97 are advised to upgrade to these updated packages, which correct these issues. After installing the update, the BIND daemon (named) will be restarted automatically. Please see https://www.redhat.com/footer/terms-of-use.html Copyright © 2012 Red Hat, Inc. All rights reserved. Important https://rhn.redhat.com/errata/RHSA-2012-0717.html https://rhn.redhat.com/errata/RHSA-2012-0717.html https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/updates/classification/#important http://www.isc.org/software/bind/advisories/cve-2012-1033 http://www.isc.org/software/bind/advisories/cve-2012-1033 http://www.isc.org/software/bind/advisories/cve-2012-1667 http://www.isc.org/software/bind/advisories/cve-2012-1667 Red Hat Enterprise Linux (v. 5 server) RHEL Desktop Workstation (v. 5 client) bind97-9.7.0-10.P2.el5_8.1.src.rpm bind97-9.7.0-10.P2.el5_8.1 as a component of Red Hat Enterprise Linux (v. 5 server) bind97-9.7.0-10.P2.el5_8.1 as a component of RHEL Desktop Workstation (v. 5 client) A flaw was found in the way BIND handled the updating of cached name server (NS) resource records. A malicious owner of a DNS domain could use this flaw to keep the domain resolvable by the BIND server even after the delegation was removed from the parent DNS zone. With this update, BIND limits the time-to-live of the replacement record to that of the time-to-live of the record being replaced. 2012-02-08T00:00:00Z 2012-02-07T00:00:00Z CVE-2012-1033 5Client-Workstation-5.8.Z:bind97-9.7.0-10.P2.el5_8.1 5Server-5.8.Z:bind97-9.7.0-10.P2.el5_8.1 Low 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N 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 https://rhn.redhat.com/errata/RHSA-2012-0717.html https://www.isc.org/software/bind/advisories/cve-2012-1033 https://www.isc.org/software/bind/advisories/cve-2012-1033 https://www.redhat.com/security/data/cve/CVE-2012-1033.html CVE-2012-1033 https://bugzilla.redhat.com/show_bug.cgi?id=788650 bz#788650: CVE-2012-1033 bind: deleted domain name resolving flaw A flaw was found in the way BIND handled zero length resource data records. A malicious owner of a DNS domain could use this flaw to create specially-crafted DNS resource records that would cause a recursive resolver or secondary server to crash or, possibly, disclose portions of its memory. 2012-06-01T00:00:00Z 2012-06-04T00:00:00Z CVE-2012-1667 5Client-Workstation-5.8.Z:bind97-9.7.0-10.P2.el5_8.1 5Server-5.8.Z:bind97-9.7.0-10.P2.el5_8.1 Important 6.4 AV:N/AC:L/Au:N/C:P/I:N/A:P 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 https://rhn.redhat.com/errata/RHSA-2012-0717.html http://www.isc.org/software/bind/advisories/cve-2012-1667 http://www.isc.org/software/bind/advisories/cve-2012-1667 https://www.redhat.com/security/data/cve/CVE-2012-1667.html CVE-2012-1667 https://bugzilla.redhat.com/show_bug.cgi?id=828078 bz#828078: CVE-2012-1667 bind: handling of zero length rdata can cause named to terminate unexpectedly