FreeBSD : isc-dhcp-server -- Remote DoS (93be487e-211f-11e1-89b4-001ec9578670)

Medium Nessus Plugin ID 57045


The remote FreeBSD host is missing one or more security-related updates.


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).


Update the affected packages.

See Also

Plugin Details

Severity: Medium

ID: 57045

File Name: freebsd_pkg_93be487e211f11e189b4001ec9578670.nasl

Version: $Revision: 1.6 $

Type: local

Published: 2011/12/08

Modified: 2013/06/22

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:isc-dhcp41-server, p-cpe:/a:freebsd:freebsd:isc-dhcp42-server, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 2011/12/07

Vulnerability Publication Date: 2011/12/07

Reference Information

CVE: CVE-2011-4539