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

isc-dhcp-server -- Remote DoS

Affected packages
isc-dhcp42-server < 4.2.3_1
isc-dhcp41-server < 4.1.e_3,2


VuXML ID 93be487e-211f-11e1-89b4-001ec9578670
Discovery 2011-12-07
Entry 2011-12-07

ISC reports:

A bug exists which allows an attacker who is able to send DHCP Request packets, either directly or through a relay, to remotely crash an ISC DHCP server if that server is configured to evaluate expressions using a regular expression (i.e. uses the "~=" or "~~" comparison operators).


CVE Name CVE-2011-4539