Debian Security Advisory

DLA-270-1 bind9 -- LTS security update

Date Reported:
11 Jul 2015
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 791715.
In Mitre's CVE dictionary: CVE-2015-4620.
More information:

A vulnerability has been found in the Internet Domain Name Server bind9:

  • CVE-2015-4620

    Breno Silveira Soares of Servico Federal de Processamento de Dados (SERPRO) discovered that the BIND DNS server is prone to a denial of service vulnerability. A remote attacker who can cause a validating resolver to query a zone containing specifically constructed contents can cause the resolver to terminate with an assertion failure, resulting in a denial of service to clients relying on the resolver.

For the squeeze distribution, these issues have been fixed in version 9.7.3.dfsg-1~squeeze15 of bind9.

We recommend that you upgrade your bind9 packages.