The Internet Systems Consortium, the makers of the open source DHCP server, indicated the DHCPv6 service may crash after processing a DHCPv6 decline message. This vulnerability has been assigned CVE 2011-0413 and affect version 4.0.x-4.2.x and maybe remotely exploitable.

Note: This DoS only affects DHCPv6 servers and there is currently no workaround.
 

[1] https://lists.isc.org/pipermail/isc-os-security/2011-January/000000.html

[2] http://www.kb.cert.org/vuls/id/686084

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Guy Bruneau IPSS Inc. gbruneau at isc dot sans dot org