Subject: | |
From: | |
Reply To: | |
Date: | Wed, 20 Jan 2010 13:25:21 -0600 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Synopsis: Moderate: bind security update
Issue date: 2010-01-20
CVE Names: CVE-2010-0097 CVE-2010-0290
CVE-2010-0097 BIND DNSSEC NSEC/NSEC3 validation code could cause bogus
NXDOMAIN responses
CVE-2010-0290 BIND upstream fix for CVE-2009-4022 is incomplete
A flaw was found in the BIND DNSSEC NSEC/NSEC3 validation code. If BIND
was running as a DNSSEC-validating resolver, it could incorrectly cache
NXDOMAIN responses, as if they were valid, for records proven by NSEC or
NSEC3 to exist. A remote attacker could use this flaw to cause a BIND
server to return the bogus, cached NXDOMAIN responses for valid records
and prevent users from retrieving those records (denial of service).
(CVE-2010-0097)
The original fix for CVE-2009-4022 was found to be incomplete. BIND was
incorrectly caching certain responses without performing proper DNSSEC
validation. CNAME and DNAME records could be cached, without proper
DNSSEC validation, when received from processing recursive client
queries that requested DNSSEC records but indicated that checking should
be disabled. A remote attacker could use this flaw to bypass the DNSSEC
validation check and perform a cache poisoning attack if the target BIND
server was receiving such client queries. (CVE-2010-0290)
After installing the update, the BIND daemon (named) will be restarted
automatically.
SL 5.x
SRPMS:
bind-9.3.6-4.P1.el5_4.2.src.rpm
i386:
bind-9.3.6-4.P1.el5_4.2.i386.rpm
bind-chroot-9.3.6-4.P1.el5_4.2.i386.rpm
bind-devel-9.3.6-4.P1.el5_4.2.i386.rpm
bind-libbind-devel-9.3.6-4.P1.el5_4.2.i386.rpm
bind-libs-9.3.6-4.P1.el5_4.2.i386.rpm
bind-sdb-9.3.6-4.P1.el5_4.2.i386.rpm
bind-utils-9.3.6-4.P1.el5_4.2.i386.rpm
caching-nameserver-9.3.6-4.P1.el5_4.2.i386.rpm
x86_64:
bind-9.3.6-4.P1.el5_4.2.x86_64.rpm
bind-chroot-9.3.6-4.P1.el5_4.2.x86_64.rpm
bind-devel-9.3.6-4.P1.el5_4.2.i386.rpm
bind-devel-9.3.6-4.P1.el5_4.2.x86_64.rpm
bind-libbind-devel-9.3.6-4.P1.el5_4.2.i386.rpm
bind-libbind-devel-9.3.6-4.P1.el5_4.2.x86_64.rpm
bind-libs-9.3.6-4.P1.el5_4.2.i386.rpm
bind-libs-9.3.6-4.P1.el5_4.2.x86_64.rpm
bind-sdb-9.3.6-4.P1.el5_4.2.x86_64.rpm
bind-utils-9.3.6-4.P1.el5_4.2.x86_64.rpm
caching-nameserver-9.3.6-4.P1.el5_4.2.x86_64.rpm
-Connie Sieh
-Troy Dawson
|
|
|