1. Ubuntu Security Notices
  2. USN-1783-1

USN-1783-1: Bind vulnerability

Publication date

29 March 2013

Overview

Bind could be made to consume memory or crash if it received specially crafted network traffic.

Releases

Packages

  • bind9 - Internet Domain Name Server

Details

Matthew Horsfall discovered that Bind incorrectly handled regular
expression checking. A remote attacker could use this flaw to cause Bind to
consume an excessive amount of memory, possibly resulting in a denial of
service. This issue was corrected by disabling RDATA regular expression
syntax checking.

Matthew Horsfall discovered that Bind incorrectly handled regular
expression checking. A remote attacker could use this flaw to cause Bind to
consume an excessive amount of memory, possibly resulting in a denial of
service. This issue was corrected by disabling RDATA regular expression
syntax checking.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
12.10 quantal bind9 –  1:9.8.1.dfsg.P1-4.2ubuntu3.2
libdns81 –  1:9.8.1.dfsg.P1-4.2ubuntu3.2
12.04 precise bind9 –  1:9.8.1.dfsg.P1-4ubuntu0.6
libdns81 –  1:9.8.1.dfsg.P1-4ubuntu0.6
11.10 oneiric bind9 –  1:9.7.3.dfsg-1ubuntu4.6
libdns69 –  1:9.7.3.dfsg-1ubuntu4.6
10.04 lucid libdns64 –  1:9.7.0.dfsg.P1-1ubuntu0.9
bind9 –  1:9.7.0.dfsg.P1-1ubuntu0.9

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References

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