USN-594-1: libnet-dns-perl vulnerability

26 March 2008

libnet-dns-perl vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 6.10
  • Ubuntu 6.06 LTS

Software Description

  • libnet-dns-perl


It was discovered that Net::DNS did not correctly validate the size of DNS replies. A remote attacker could send a specially crafted DNS response and cause applications using Net::DNS to abort, leading to a denial of service.

Update instructions

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

Ubuntu 6.10
libnet-dns-perl - 0.57-1ubuntu1.1
Ubuntu 6.06 LTS
libnet-dns-perl - 0.53-2ubuntu1.1

To update your system, please follow these instructions:

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