| Description: | Summary:
The remote host is missing an update for the Debian 'bind9' package(s) announced via the DSA-2130-1 advisory.
Vulnerability Insight:
Several remote vulnerabilities have been discovered in BIND, an implementation of the DNS protocol suite. The Common Vulnerabilities and Exposures project identifies the following problems:
CVE-2010-3762
When DNSSEC validation is enabled, BIND does not properly handle certain bad signatures if multiple trust anchors exist for a single zone, which allows remote attackers to cause a denial of service (server crash) via a DNS query.
CVE-2010-3614
BIND does not properly determine the security status of an NS RRset during a DNSKEY algorithm rollover, which may lead to zone unavailability during rollovers.
CVE-2010-3613
BIND does not properly handle the combination of signed negative responses and corresponding RRSIG records in the cache, which allows remote attackers to cause a denial of service (server crash) via a query for cached data.
In addition, this security update improves compatibility with previously installed versions of the bind9 package. As a result, it is necessary to initiate the update with 'apt-get dist-upgrade' instead of 'apt-get update'.
For the stable distribution (lenny), these problems have been fixed in version 1:9.6.ESV.R3+dfsg-0+lenny1.
For the upcoming stable distribution (squeeze) and the unstable distribution (sid), these problems have been fixed in version 1:9.7.2.dfsg.P3-1.
We recommend that you upgrade your bind9 packages.
Affected Software/OS:
'bind9' package(s) on Debian 5.
Solution:
Please install the updated package(s).
CVSS Score:
6.4
CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:P/A:P
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