CVE-2012-3955
ISC DHCP 4.1.x before 4.1-ESV-R7 and 4.2.x before 4.2.4-P2 allows remote attackers to cause a denial of service (daemon crash) in opportunistic circumstances by establishing an IPv6 lease in an environment where the lease expiration time is later reduced.
Date published : 2012-09-14
http://www.securityfocus.com/bid/55530
https://blogs.oracle.com/sunsecurity/entry/cve_2012_3955_denial_of