FreeBSD : bind -- Multiple Denial of Service vulnerabilities (3cb6f059-c69d-11db-9f82-000e0c2e438a)

High Nessus Plugin ID 24730


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


A type * (ANY) query response containing multiple RRsets can trigger an assertion failure.

Certain recursive queries can cause the nameserver to crash by using memory which has already been freed. Impact : A remote attacker sending a type * (ANY) query to an authoritative DNS server for a DNSSEC signed zone can cause the named(8) daemon to exit, resulting in a Denial of Service.

A remote attacker sending recursive queries can cause the nameserver to crash, resulting in a Denial of Service. Workaround : There is no workaround available, but systems which are not authoritative servers for DNSSEC signed zones are not affected by the first issue; and systems which do not permit untrusted users to perform recursive DNS resolution are not affected by the second issue. Note that the default configuration for named(8) in FreeBSD allows local access only (which on many systems is equivalent to refusing access to untrusted users).


Update the affected package.

See Also

Plugin Details

Severity: High

ID: 24730

File Name: freebsd_pkg_3cb6f059c69d11db9f82000e0c2e438a.nasl

Version: $Revision: 1.12 $

Type: local

Published: 2007/02/28

Modified: 2016/05/09

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.8

Temporal Score: 7.8

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

Temporal Vector: CVSS2#E:ND/RL:ND/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:named, cpe:/o:freebsd:freebsd

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2007/02/27

Vulnerability Publication Date: 2007/02/09

Reference Information

CVE: CVE-2007-0493, CVE-2007-0494

BID: 22229, 22231

OSVDB: 31922, 31923

FreeBSD: SA-07:02.bind