USN-418-1: Bind vulnerabilities

Releases

• Ubuntu 6.10
• Ubuntu 6.06
• Ubuntu 5.10

Details

A flaw was discovered in Bind's DNSSEC validation code. Remote
attackers could send a specially crafted DNS query which would cause the
Bind server to crash, resulting in a denial of service. Only servers
configured to use DNSSEC extensions were vulnerable.

Update instructions

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

Ubuntu 6.10

• libdns21 - 1:9.3.2-2ubuntu3.1

Ubuntu 6.06

• libdns21 - 1:9.3.2-2ubuntu1.2

Ubuntu 5.10

• libdns20 - 1:9.3.1-2ubuntu1.2

In general, a standard system upgrade is sufficient to effect the
necessary changes.

References

• CVE-2007-0493
• CVE-2007-0494