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Red Hat Enterprise Linux 6 RHSA-2013:0689-01 Critical: Bind DoS Attack

red hat
Calendar Grey March 28, 2013
Dist Redhat Esm H88
Patch deployment for Red Hat addresses vulnerabilities and defects affecting Enterprise Linux platforms. Praised by evaluation team for effectiveness.
Updated bind packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 6

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

Summary

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 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. (CVE-2013-2266)
Note: This update disables the syntax checking of NAPTR (Naming Authority Pointer) resource records.
This update also fixes the following bug:
* 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. (BZ#928439)
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.

Topics%20covered

Topics Covered

security advisory security issue critical bind DoS Red Hat Enterprise Linux

References

https://access.redhat.com/security/cve/CVE-2013-2266 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386: bind-debuginfo-9.8.2-0.17.rc1.el6_4.4.i686.rpm bind-libs-9.8.2-0.17.rc1.el6_4.4.i686.rpm bind-utils-9.8.2-0.17.rc1.el6_4.4.i686.rpm
x86_64: bind-debuginfo-9.8.2-0.17.rc1.el6_4.4.i686.rpm bind-debuginfo-9.8.2-0.17.rc1.el6_4.4.x86_64.rpm bind-libs-9.8.2-0.17.rc1.el6_4.4.i686.rpm bind-libs-9.8.2-0.17.rc1.el6_4.4.x86_64.rpm bind-utils-9.8.2-0.17.rc1.el6_4.4.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
i386: bind-9.8.2-0.17.rc1.el6_4.4.i686.rpm bind-chroot-9.8.2-0.17.rc1.el6_4.4.i686.rpm bind-debuginfo-9.8.2-0.17.rc1.el6_4.4.i686.rpm bind-devel-9.8.2-0.17.rc1.el6_4.4.i686.rpm bind-sdb-9.8.2-0.17.rc1.el6_4.4.i686.rpm
x86_64: bind-9.8.2-0.17.rc1.el6_4.4.x86_64.rpm bind-chroot-9.8.2-0.17.rc1.el6_4.4.x86_64.rpm bind-debuginfo-9.8.2-0.17.rc1.el6_4.4.i686.rpm bind-debuginfo-9.8.2-0.17.rc1.el6_4.4.x86_64.rpm bind-devel-9.8.2-0.17.rc1.el6_4.4.i686.rpm bind-devel-9.8.2-0.17.rc1.el6_4.4.x86_64.rpm bind-sdb-9.8.2-0.17.rc1.el6_4.4.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
x86_64: bind-debuginfo-9.8.2-0.17.rc1.el6_4.4.i686.rpm bind-debuginfo-9.8.2-0.17.rc1.el6_4.4.x86_64.rpm bind-libs-9.8.2-0.17.rc1.el6_4.4.i686.rpm bind-libs-9.8.2-0.17.rc1.el6_4.4.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2013:0689-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2013:0689.html
Issue date: 2013-03-28

Topic

Updated bind packages that fix one security issue and one bug are nowavailable for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as havingimportant security impact. A Common Vulnerability Scoring System (CVSS)base score, which gives a detailed severity rating, is available from theCVE link in the References section.

Topics%20covered

Topics Covered

security advisory security issue critical bind DoS Red Hat Enterprise Linux

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

928027 - CVE-2013-2266 bind: libdns regular expressions excessive resource consumption DoS

928439 - building bind-dyndb-ldap error: dns/rrl.h: No such file or directory

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