Red Hat Security Advisory: bind97 security update Security Advisory secalert@redhat.com Red Hat Security Response Team RHSA-2012:1122 Final 1 1 2012-07-31T03:40:00Z Current version 2012-07-31T03:40:00Z 2012-07-31T03:40:00Z Red Hat rhsa-to-cvrf 1.0.1484 2012-07-31T03:50:03Z Updated bind97 packages that fix one security issue are now available for Red Hat Enterprise Linux 5. 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. 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. An uninitialized data structure use flaw was found in BIND when DNSSEC validation was enabled. A remote attacker able to send a large number of queries to a DNSSEC validating BIND resolver could use this flaw to cause it to exit unexpectedly with an assertion failure. (CVE-2012-3817) Users of bind97 are advised to upgrade to these updated packages, which correct this issue. 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-2012-1122.html https://rhn.redhat.com/errata/RHSA-2012-1122.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-2012-3817 http://www.isc.org/software/bind/advisories/cve-2012-3817 Red Hat Enterprise Linux (v. 5 server) RHEL Desktop Workstation (v. 5 client) bind97-9.7.0-10.P2.el5_8.2.src.rpm bind97-9.7.0-10.P2.el5_8.2 as a component of Red Hat Enterprise Linux (v. 5 server) bind97-9.7.0-10.P2.el5_8.2 as a component of RHEL Desktop Workstation (v. 5 client) An uninitialized data structure use flaw was found in BIND when DNSSEC validation was enabled. A remote attacker able to send a large number of queries to a DNSSEC validating BIND resolver could use this flaw to cause it to exit unexpectedly with an assertion failure. 2012-07-24T00:00:00Z 2012-07-24T00:00:00Z CVE-2012-3817 5Client-Workstation-5.8.Z:bind97-9.7.0-10.P2.el5_8.2 5Server-5.8.Z:bind97-9.7.0-10.P2.el5_8.2 Important 5.0 AV:N/AC:L/Au:N/C:N/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-2012-1122.html https://kb.isc.org/article/AA-00729 https://kb.isc.org/article/AA-00729 https://www.redhat.com/security/data/cve/CVE-2012-3817.html CVE-2012-3817 https://bugzilla.redhat.com/show_bug.cgi?id=842897 bz#842897: CVE-2012-3817 bind: heavy DNSSEC validation load can cause assertion failure