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Red Hat Enterprise Linux Advisory RHSA-2014:1984-01 Critical DoS Risk

red hat
Calendar Grey December 11, 2014
Dist Redhat Esm H88
==================================================================== Red Hat Security Advisory Synop
Updated bind packages that fix one security issue are now available for Red Hat Enterprise Linux 5, 6, and 7

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/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 way BIND followed DNS delegations. A remote attacker could use a specially crafted zone containing a large number of referrals which, when looked up and processed, would cause named to use excessive amounts of memory or crash. (CVE-2014-8500)
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.

Topics%20covered

Topics Covered

security advisory Red Hat update critical bind DoS

References

https://access.redhat.com/security/cve/CVE-2014-8500 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source: bind-9.3.6-25.P1.el5_11.2.src.rpm
i386: bind-9.3.6-25.P1.el5_11.2.i386.rpm bind-debuginfo-9.3.6-25.P1.el5_11.2.i386.rpm bind-libs-9.3.6-25.P1.el5_11.2.i386.rpm bind-sdb-9.3.6-25.P1.el5_11.2.i386.rpm bind-utils-9.3.6-25.P1.el5_11.2.i386.rpm
x86_64: bind-9.3.6-25.P1.el5_11.2.x86_64.rpm bind-debuginfo-9.3.6-25.P1.el5_11.2.i386.rpm bind-debuginfo-9.3.6-25.P1.el5_11.2.x86_64.rpm bind-libs-9.3.6-25.P1.el5_11.2.i386.rpm bind-libs-9.3.6-25.P1.el5_11.2.x86_64.rpm bind-sdb-9.3.6-25.P1.el5_11.2.x86_64.rpm bind-utils-9.3.6-25.P1.el5_11.2.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source: bind-9.3.6-25.P1.el5_11.2.src.rpm
i386: bind-chroot-9.3.6-25.P1.el5_11.2.i386.rpm bind-debuginfo-9.3.6-25.P1.el5_11.2.i386.rpm bind-devel-9.3.6-25.P1.el5_11.2.i386.rpm bind-libbind-devel-9.3.6-25.P1.el5_11.2.i386.rpm caching-nameserver-9.3.6-25.P1.el5_11.2.i386.rpm
x86_64: bind-chroot-9.3.6-25.P1.el5_11.2.x86_64.rpm bind-debuginfo-9.3.6-25.P1.el5_11.2.i386.rpm bind-debuginfo-9.3.6-25.P1.el5_11.2.x86_64.rpm bind-devel-9.3.6-25.P1.el5_11.2.i386.rpm bind-devel-9.3.6-25.P1.el5_11.2.x86_64.rpm bind-libbind-devel-9.3.6-25.P1.el5_11.2.i386.rpm bind-libbind-devel-9.3.6-25.P1.el5_11.2.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2014:1984-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2014:1984.html
Issue date: 2014-12-12

Topic

Updated bind packages that fix one security issue are now available for RedHat Enterprise Linux 5, 6, and 7.Red Hat Product Security has rated this update as having Important securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.

Topics%20covered

Topics Covered

security advisory Red Hat update critical bind DoS

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 Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

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 (v. 7) - noarch, ppc64, s390x, x86_64

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

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, s390x, x86_64

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

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

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

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

1171912 - CVE-2014-8500 bind: delegation handling denial of service

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