CVE-2012-3955

Name of the Vulnerable Software and Affected Versions ISC DHCP versions 4.1.x through 4.1-ESV-R6 ISC DHCP versions 4.2.x through 4.2.4-P1

Description The issue allows remote attackers to cause a denial of service, potentially disrupting the availability of protected information. This can be achieved by establishing an IPv6 lease in an environment where the lease expiration time is later reduced, leading to opportunistic circumstances that may cause the daemon to crash.

Recommendations For ISC DHCP versions 4.1.x through 4.1-ESV-R6, update to version 4.1-ESV-R7 or later. For ISC DHCP versions 4.2.x through 4.2.4-P1, update to version 4.2.4-P2 or later.