FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

isc-dhcp-server -- DoS in DHCPv6

Affected packages
isc-dhcp42-server < 4.2.3_2


VuXML ID 1800886c-3dde-11e1-89b4-001ec9578670
Discovery 2012-01-13
Entry 2012-01-13

ISC reports:

Due to improper handling of a DHCPv6 lease structure, ISC DHCP servers that are serving IPv6 address pools AND using Dynamic DNS can encounter a segmentation fault error while updating lease status under certain conditions.

The potential exists for this condition to be intentionally triggered, resulting in effective denial of service to clients expecting service from the affected server.


CVE Name CVE-2011-4868