Ubuntu USN-1518-1 Critical Update: bind9 Denial Of Service Risk

ubuntu

July 26, 2012

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

Summary

Bind could be made to crash if it received specially crafted network

traffic.

Software Description:

- bind9: Internet Domain Name Server

Details:

Einar Lonn discovered that Bind incorrectly initialized the failing-query

cache. A remote attacker could use this flaw to cause Bind to crash,

resulting in a denial of service.

Topics Covered

security advisory denial of service critical ubuntu bind9

Update Instructions

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

Ubuntu 12.04 LTS:
  libdns81                        1:9.8.1.dfsg.P1-4ubuntu0.2

Ubuntu 11.10:
  libdns69                        1:9.7.3.dfsg-1ubuntu4.3

Ubuntu 11.04:
  libdns69                        1:9.7.3.dfsg-1ubuntu2.5

Ubuntu 10.04 LTS:
  libdns64                        1:9.7.0.dfsg.P1-1ubuntu0.6

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