FreeBSD : isc-dhcp-server -- DoS in DHCPv6 (1800886c-3dde-11e1-89b4-001ec9578670)

Medium Nessus Plugin ID 57550


The remote FreeBSD host is missing a security-related update.


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.


Update the affected package.

See Also

Plugin Details

Severity: Medium

ID: 57550

File Name: freebsd_pkg_1800886c3dde11e189b4001ec9578670.nasl

Version: $Revision: 1.6 $

Type: local

Published: 2012/01/16

Modified: 2013/06/21

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.1

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

Vulnerability Information

CPE: 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: 2012/01/13

Vulnerability Publication Date: 2012/01/13

Reference Information

CVE: CVE-2011-4868