FreeBSD : mod_access_referer -- NULL pointer dereference vulnerability (af747389-42ba-11d9-bd37-00065be4b5b6)

Medium Nessus Plugin ID 19081


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


A malformed Referer header field causes the Apache ap_parse_uri_components function to discard it with the result that a pointer is not initialized. The mod_access_referer module does not take this into account with the result that it may use such a pointer.

The NULL pointer vulnerability may possibly be used in a remote denial of service attack against affected Apache servers.


Update the affected package.

See Also

Plugin Details

Severity: Medium

ID: 19081

File Name: freebsd_pkg_af74738942ba11d9bd3700065be4b5b6.nasl

Version: $Revision: 1.16 $

Type: local

Published: 2005/07/13

Modified: 2014/08/20

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 4

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

Temporal Vector: CVSS2#E:U/RL:W/RC:ND

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:mod_access_referer, 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: 2004/12/11

Vulnerability Publication Date: 2003/04/16

Reference Information

CVE: CVE-2003-1054

BID: 7375

Secunia: 8612