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Red Hat Enterprise Linux 5 RHSA-2014:1985-01 Important: bind97 DoS

red hat
Calendar Grey December 11, 2014
Dist Redhat Esm H88
==================================================================== Red Hat Security Advisory Synop
Updated bind97 packages that fix one security issue are now available for Red Hat Enterprise Linux 5

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 bind97 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 denial of service security update Red Hat Enterprise Linux important CVE issue bind97

References

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

Package List

RHEL Desktop Workstation (v. 5 client):
Source: bind97-9.7.0-21.P2.el5_11.1.src.rpm
i386: bind97-9.7.0-21.P2.el5_11.1.i386.rpm bind97-chroot-9.7.0-21.P2.el5_11.1.i386.rpm bind97-debuginfo-9.7.0-21.P2.el5_11.1.i386.rpm bind97-devel-9.7.0-21.P2.el5_11.1.i386.rpm bind97-libs-9.7.0-21.P2.el5_11.1.i386.rpm bind97-utils-9.7.0-21.P2.el5_11.1.i386.rpm
x86_64: bind97-9.7.0-21.P2.el5_11.1.x86_64.rpm bind97-chroot-9.7.0-21.P2.el5_11.1.x86_64.rpm bind97-debuginfo-9.7.0-21.P2.el5_11.1.i386.rpm bind97-debuginfo-9.7.0-21.P2.el5_11.1.x86_64.rpm bind97-devel-9.7.0-21.P2.el5_11.1.i386.rpm bind97-devel-9.7.0-21.P2.el5_11.1.x86_64.rpm bind97-libs-9.7.0-21.P2.el5_11.1.i386.rpm bind97-libs-9.7.0-21.P2.el5_11.1.x86_64.rpm bind97-utils-9.7.0-21.P2.el5_11.1.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source: bind97-9.7.0-21.P2.el5_11.1.src.rpm
i386: bind97-9.7.0-21.P2.el5_11.1.i386.rpm bind97-chroot-9.7.0-21.P2.el5_11.1.i386.rpm bind97-debuginfo-9.7.0-21.P2.el5_11.1.i386.rpm bind97-devel-9.7.0-21.P2.el5_11.1.i386.rpm bind97-libs-9.7.0-21.P2.el5_11.1.i386.rpm bind97-utils-9.7.0-21.P2.el5_11.1.i386.rpm
ia64: bind97-9.7.0-21.P2.el5_11.1.ia64.rpm bind97-chroot-9.7.0-21.P2.el5_11.1.ia64.rpm bind97-debuginfo-9.7.0-21.P2.el5_11.1.ia64.rpm bind97-devel-9.7.0-21.P2.el5_11.1.ia64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2014:1985-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2014:1985.html
Issue date: 2014-12-12

Topic

Updated bind97 packages that fix one security issue are now available forRed Hat Enterprise Linux 5.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 denial of service security update Red Hat Enterprise Linux important CVE issue bind97

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

Bugs Fixed

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

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