Synopsis
The remote CentOS host is missing one or more security updates.
Description
Updated Apache httpd packages that correct two security issues are now available for Red Hat Enterprise Linux 3 and 4.
This update has been rated as having important security impact by the Red Hat Security Response Team.
The Apache HTTP Server is a popular and freely-available Web server.
A flaw was discovered in mod_ssl's handling of the 'SSLVerifyClient' directive. This flaw occurs if a virtual host is configured using 'SSLVerifyClient optional' and a directive 'SSLVerifyClient required' is set for a specific location. For servers configured in this fashion, an attacker may be able to access resources that should otherwise be protected, by not supplying a client certificate when connecting. The Common Vulnerabilities and Exposures project assigned the name CVE-2005-2700 to this issue.
A flaw was discovered in Apache httpd where the byterange filter would buffer certain responses into memory. If a server has a dynamic resource such as a CGI script or PHP script that generates a large amount of data, an attacker could send carefully crafted requests in order to consume resources, potentially leading to a Denial of Service. (CVE-2005-2728)
Users of Apache httpd should update to these errata packages that contain backported patches to correct these issues.
Solution
Update the affected httpd packages.
Plugin Details
File Name: centos_RHSA-2005-608.nasl
Agent: unix
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus
Risk Information
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: cpe:/o:centos:centos:3, p-cpe:/a:centos:centos:httpd, p-cpe:/a:centos:centos:httpd-manual, p-cpe:/a:centos:centos:mod_ssl, cpe:/o:centos:centos:4, p-cpe:/a:centos:centos:httpd-devel, p-cpe:/a:centos:centos:httpd-suexec
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
Patch Publication Date: 9/6/2005
Vulnerability Publication Date: 8/30/2005