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Debian Security Advisory DSA 2054-2 (bind9)

Information

Severity

Severity

High

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

7.6

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:H/Au:N/C:C/I:C/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

12 years ago

Modified

Modified

4 years ago

Summary

The remote host is missing an update to bind9 announced via advisory DSA 2054-2.

Insight

Insight

This update restores the PID file location for bind to the location before the last security update. For reference, here is the original advisory text that explains the security problems fixed: Several cache-poisoning vulnerabilities have been discovered in BIND. These vulnerabilities are apply only if DNSSEC validation is enabled and trust anchors have been installed, which is not the default. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2010-0097 BIND does not properly validate DNSSEC NSEC records, which allows remote attackers to add the Authenticated Data (AD) flag to a forged NXDOMAIN response for an existing domain. CVE-2010-0290 When processing crafted responses containing CNAME or DNAME records, BIND is subject to a DNS cache poisoning vulnerability, provided that DNSSEC validation is enabled and trust anchors have been installed. CVE-2010-0382 When processing certain responses containing out-of-bailiwick data, BIND is subject to a DNS cache poisoning vulnerability, provided that DNSSEC validation is enabled and trust anchors have been installed. In addition, this update introduce a more conservative query behavior in the presence of repeated DNSSEC validation failures, addressing the roll over and die phenomenon. The new version also supports the cryptographic algorithm used by the upcoming signed ICANN DNS root (RSASHA256 from RFC 5702), and the NSEC3 secure denial of existence algorithm used by some signed top-level domains. This update is based on a new upstream version of BIND 9, 9.6-ESV-R1. Because of the scope of changes, extra care is recommended when installing the update. Due to ABI changes, new Debian packages are included, and the update has to be installed using apt-get dist-upgrade (or an equivalent aptitude command). For the stable distribution (lenny), these problems have been fixed in version 1:9.6.ESV.R1+dfsg-0+lenny2. The unstable distribution is not affected by the wrong PID file location. We recommend that you upgrade your bind9 packages.

Solution

Solution

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%202054-2

Common Vulnerabilities and Exposures (CVE)