CentOS Errata and Security Advisory CESA-2011:1392
The Apache HTTP Server is a popular web server.
It was discovered that the Apache HTTP Server did not properly validate the request URI for proxied requests. In certain configurations, if a reverse proxy used the ProxyPassMatch directive, or if it used the RewriteRule directive with the proxy flag, a remote attacker could make the proxy connect to an arbitrary server, possibly disclosing sensitive information from internal web servers not directly accessible to the attacker. (CVE-2011-3368)
Red Hat would like to thank Context Information Security for reporting this issue.
This update also fixes the following bug:
All httpd users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.
Merged security bulletin from advisories: http://lists.centos.org/pipermail/centos-announce/2011-November/030209.html http://lists.centos.org/pipermail/centos-announce/2011-November/030210.html http://lists.centos.org/pipermail/centos-announce/2011-October/030163.html http://lists.centos.org/pipermail/centos-announce/2011-October/030164.html
Affected packages: httpd httpd-devel httpd-manual httpd-suexec mod_ssl
Upstream details at: https://rhn.redhat.com/errata/RHSA-2011-1392.html