7.14. bind 7.14.1. RHSA-2013:0550 - Moderate: bind security and enhancement update Updated bind packages that fix one security issue and add one enhancement are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) associated with each description below. 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. DNS64 is used to automatically generate DNS records so IPv6 based clients can access IPv4 systems through a NAT64 server. Security Fix CVE-2012-5689 A flaw was found in the DNS64 implementation in BIND when using Response Policy Zones (RPZ). If a remote attacker sent a specially-crafted query to a named server that is using RPZ rewrite rules, named could exit unexpectedly with an assertion failure. Note that DNS64 support is not enabled by default. Enhancement BZ# 906312 Previously, it was impossible to configure the maximum number of responses sent per second to one client. This allowed remote attackers to conduct traffic amplification attacks using DNS queries with spoofed source IP addresses. With this update, it is possible to use the new "rate-limit" configuration option in named.conf and configure the maximum number of queries which the server responds to. Refer to the BIND documentation for more details about the "rate-limit" option. All bind users are advised to upgrade to these updated packages, which contain patches to correct this issue and add this enhancement. After installing the update, the BIND daemon (named) will be restarted automatically. 7.14.2. RHBA-2013:0475 - bind bug fix update Updated bind packages that multiples bugs are now available for Red Hat Enterprise Linux 6. BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly. Bug Fixes BZ#827282 Previously, initscript sometimes reported a spurious error message "initscript: silence spurious "named.pid: No such file or directory" due to a race condition when the DNS server (named) was stopped. This spurious error message has been suppressed and is no longer reported in this scenario. BZ# 837165 Due to a race condition in the rbtdb.c source file, the named daemon could terminate unexpectedly with the INSIST error code. This bug has been fixed in the code and the named daemon no longer crashes in the described scenario. BZ#853806 Previously, BIND rejected "forward" and "forwarders" statements in static-stub zones. Consequently, it was impossible to forward certain queries to specified servers. With this update, BIND accepts those options for static-stub zones properly, thus fixing this bug. All users of bind are advised to upgrade to these updated packages, which fix these bugs. 7.14.3. RHSA-2013:0689 - Important: bind security and bug fix update Updated bind packages that fix one security issue and one bug are 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 associated with the description below. 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. Security Fix CVE-2013-2266 A denial of service flaw was found in the libdns library. A remote attacker could use this flaw to send a specially-crafted DNS query to named that, when processed, would cause named to use an excessive amount of memory, or possibly crash. Note: This update disables the syntax checking of NAPTR (Naming Authority Pointer) resource records. Bug Fix BZ# 928439 Previously, rebuilding the bind-dyndb-ldap source RPM failed with a "/usr/include/dns/view.h:76:21: error: dns/rrl.h: No such file or directory" error. All bind users are advised to upgrade to these updated packages, which contain patches to correct these issues. After installing the update, the BIND daemon (named) will be restarted automatically. 7.14.4. RHBA-2013:1177 - bind bug fix update Updated bind packages that fix one bug are now available for Red Hat Enterprise Linux 6. BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly. Bug Fix BZ# 996955 Due to a missing gss_release_name() call, the BIND DNS server leaked memory when the "tkey-gssapi-credential" option was used in the BIND configuration. This update properly frees all memory in case the "tkey-gssapi-credential" is used, and BIND no longer leaks memory when GSSAPI credentials are used internally by the server for authentication. Users of bind are advised to upgrade to these updated packages, which fix this bug. After installing the update, the BIND daemon (named) will be restarted automatically. 7.14.5. RHSA-2013:1114 - Important: bind security update Updated bind packages that fix one security issue are 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 associated with the description below. 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. Security Fix CVE-2013-4854 A denial of service flaw was found in BIND. A remote attacker could use this flaw to send a specially-crafted DNS query to named that, when processed, would cause named to crash when rejecting the malformed query. All bind users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, the BIND daemon (named) will be restarted automatically.

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