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Red Hat: RHSA-2009:0020-01 Moderate: Bind DSA Certificate Flaw

red hat
Calendar Grey January 8, 2009
Dist Redhat Esm H88
Debian issues a significant notice for openldap addressing a vulnerability impacting access controls. Upgrade promptly!
Updated Bind packages to correct a security issue are now available for Red Hat Enterprise Linux 2.1, 3, 4, and 5

Solution

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at

Summary

BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols.
A flaw was discovered in the way BIND checked the return value of the OpenSSL DSA_do_verify function. On systems using DNSSEC, a malicious zone could present a malformed DSA certificate and bypass proper certificate validation, allowing spoofing attacks. (CVE-2009-0025)
For users of Red Hat Enterprise Linux 3 this update also addresses a bug which can cause BIND to occasionally exit with an assertion failure.
All BIND users are advised to upgrade to the updated package, which contains a backported patch to resolve this issue. After installing the update, BIND daemon will be restarted automatically.

Topics%20covered

Topics Covered

security advisory moderate Red Hat bind spoofing DNSSEC certificate flaw

References

https://www.cve.org/CVERecord?id=CVE-2009-0025 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 :
Source:
i386: bind-9.2.1-11.el2.i386.rpm bind-devel-9.2.1-11.el2.i386.rpm bind-utils-9.2.1-11.el2.i386.rpm
ia64: bind-9.2.1-11.el2.ia64.rpm bind-devel-9.2.1-11.el2.ia64.rpm bind-utils-9.2.1-11.el2.ia64.rpm
Red Hat Linux Advanced Workstation 2.1:
Source:
ia64: bind-9.2.1-11.el2.ia64.rpm bind-devel-9.2.1-11.el2.ia64.rpm bind-utils-9.2.1-11.el2.ia64.rpm
Red Hat Enterprise Linux ES version 2.1:
Source:
i386: bind-9.2.1-11.el2.i386.rpm bind-devel-9.2.1-11.el2.i386.rpm bind-utils-9.2.1-11.el2.i386.rpm
Red Hat Enterprise Linux WS version 2.1:
Source:
i386: bind-9.2.1-11.el2.i386.rpm bind-devel-9.2.1-11.el2.i386.rpm bind-utils-9.2.1-11.el2.i386.rpm
Red Hat Enterprise Linux AS version 3:
Source:
i386: bind-9.2.4-23.el3.i386.rpm bind-chroot-9.2.4-23.el3.i386.rpm bind-debuginfo-9.2.4-23.el3.i386.rpm bind-devel-9.2.4-23.el3.i386.rpm bind-libs-9.2.4-23.el3.i386.rpm bind-utils-9.2.4-23.el3.i386.rpm
ia64: bind-9.2.4-23.el3.ia64.rpm bind-chroot-9.2.4-23.el3.ia64.rpm bind-debuginfo-9.2.4-23.el3.ia64.rpm bind-devel-9.2.4-23.el3.ia64.rpm bind-libs-9.2.4-23.el3.ia64.rpm bind-utils-9.2.4-23.el3.ia64.rpm
ppc: bind-9.2.4-23.el3.ppc.rpm bind-chroot-9.2.4-23.el3.ppc.rpm

Read the Full Advisory


Advisory ID: RHSA-2009:0020-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2009:0020.html
Issue date: 2009-01-08

Topic

Updated Bind packages to correct a security issue are now available for Red Hat Enterprise Linux 2.1, 3, 4, and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Topics%20covered

Topics Covered

security advisory moderate Red Hat bind spoofing DNSSEC certificate flaw

Relevant Releases Architectures

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64

Red Hat Linux Advanced Workstation 2.1 - ia64

Red Hat Enterprise Linux ES version 2.1 - i386

Red Hat Enterprise Linux WS version 2.1 - i386

Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64

Red Hat Desktop version 3 - i386, x86_64

Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64

Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64

Red Hat Enterprise Linux Desktop version 4 - i386, x86_64

Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64

Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

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

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Bugs Fixed

461047 - named dies due to assertion failure

478984 - CVE-2009-0025 bind: DSA_do_verify() returns check issue

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