| <?xml version="1.0" encoding="utf-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200406-16"> |
| <title>Apache 1.3: Buffer overflow in mod_proxy</title> |
| <synopsis> |
| A bug in mod_proxy may allow a remote attacker to execute arbitrary code |
| when Apache is configured a certain way. |
| </synopsis> |
| <product type="ebuild">Apache</product> |
| <announced>June 21, 2004</announced> |
| <revised>December 30, 2007: 02</revised> |
| <bug>53544</bug> |
| <access>remote</access> |
| <affected> |
| <package name="www-servers/apache" auto="yes" arch="*"> |
| <unaffected range="ge">1.3.31-r2</unaffected> |
| <vulnerable range="le">1.3.31-r1</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| The Apache HTTP Server Project is an effort to develop and maintain an |
| open-source HTTP server for modern operating systems. The goal of this |
| project is to provide a secure, efficient and extensible server that |
| provides services in tune with the current HTTP standards. |
| </p> |
| </background> |
| <description> |
| <p> |
| 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. |
| </p> |
| </description> |
| <impact type="normal"> |
| <p> |
| 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". |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| There is no known workaround at this time. All users are encouraged to |
| upgrade to the latest available version: |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| Apache 1.x users should upgrade to the latest version of Apache: |
| </p> |
| <code> |
| # emerge sync |
| |
| # emerge -pv ">=www-servers/apache-1.3.31-r2" |
| # emerge ">=www-servers/apache-1.3.31-r2"</code> |
| </resolution> |
| <references> |
| <uri link="http://www.guninski.com/modproxy1.html">Georgi Guninski security advisory #69, 2004</uri> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0492">CAN-2004-0492</uri> |
| </references> |
| <metadata tag="submitter"> |
| jaervosz |
| </metadata> |
| </glsa> |