21:19 dougb 

Update to versions 9.8.0-P4, 9.7.3-P3, and 9.6-ESV-R4-P3.

ALL BIND USERS ENCOURAGED TO UPGRADE IMMEDIATELY

This update addresses the following vulnerabilities:

CVE-2011-2464
=============
Severity:       High
Exploitable:    Remotely

Description:

A defect in the affected BIND 9 versions allows an attacker to remotely
cause the "named" process to exit using a specially crafted packet. This
defect affects both recursive and authoritative servers. The code location
of the defect makes it impossible to protect BIND using ACLs configured
within named.conf or by disabling any features at compile-time or run-time.

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2464
https://www.isc.org/software/bind/advisories/cve-2011-2464

CVE-2011-2465
=============
Severity:       High
Exploitable:    Remotely

Description:

A defect in the affected versions of BIND could cause the "named" process
to exit when queried, if the server has recursion enabled and was
configured with an RPZ zone containing certain types of records.
Specifically, these are any DNAME record and certain kinds of CNAME
records.

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2465
https://www.isc.org/software/bind/advisories/cve-2011-2465

Additional changes in this version:

* If named is configured to be both authoritative and resursive and
  receives a recursive query for a CNAME in a zone that it is
  authoritative for, if that CNAME also points to a zone the server
  is authoritative for, the recursive part of name will not follow
  the CNAME change and the response will not be a complete CNAME
  chain. [RT #24455]

  Thus the patch for this bug has been removed from the port

* Using Response Policy Zone (RPZ) to query a wildcard CNAME label
  with QUERY type SIG/RRSIG, it can cause named to crash. Fix is
  query type independant. [RT #24715] [CVE-2011-1907]

23:47 dougb 

Upgrade to 9.8.0-P2, which addresses the following issues:

1. Very large RRSIG RRsets included in a negative cache can trigger
an assertion failure that will crash named (BIND 9 DNS) due to an
off-by-one error in a buffer size check.

This bug affects all resolving name servers, whether DNSSEC validation
is enabled or not, on all BIND versions prior to today. There is a
possibility of malicious exploitation of this bug by remote users.

2. Named could fail to validate zones listed in a DLV that validated
insecure without using DLV and had DS records in the parent zone.

Add a patch provided by ru@ and confirmed by ISC to fix a crash at
shutdown time when a SIG(0) key is being used.

Add a patch from ISC that will be in 9.8.1 to handle intermittent
failure of recursive queries involving CNAMEs and previously cached
responses.