GLSA-200406-16 : Apache 1.3: Buffer overflow in mod_proxy

Critical Nessus Plugin ID 14527


The remote Gentoo host is missing one or more security-related patches.


The remote host is affected by the vulnerability described in GLSA-200406-16 (Apache 1.3: Buffer overflow in mod_proxy)

A bug in the proxy_util.c file may lead to a remote buffer overflow. To trigger the vulnerability an attacker would have to get mod_proxy to connect to a malicous server which returns an invalid (negative) Content-Length.
Impact :

An attacker could cause a Denial of Service as the Apache child handling the request, which will die and under some circumstances execute arbitrary code as the user running Apache, usually 'apache'.
Workaround :

There is no known workaround at this time. All users are encouraged to upgrade to the latest available version:


Apache 1.x users should upgrade to the latest version of Apache:
# emerge sync # emerge -pv '>=www-servers/apache-1.3.31-r2' # emerge '>=www-servers/apache-1.3.31-r2'

See Also

Plugin Details

Severity: Critical

ID: 14527

File Name: gentoo_GLSA-200406-16.nasl

Version: $Revision: 1.14 $

Type: local

Published: 2004/08/30

Modified: 2015/04/13

Dependencies: 12634

Risk Information

Risk Factor: Critical


Base Score: 10

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:apache, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 2004/06/21

Vulnerability Publication Date: 2004/06/10

Reference Information

CVE: CVE-2004-0492

OSVDB: 6839

GLSA: 200406-16