A vulnerability has been discovered and corrected in apache: The mod_proxy module in the Apache HTTP Server 1.3.x through 1.3.42, 2.0.x through 2.0.64, and 2.2.x through 2.2.21 does not properly interact with use of RewriteRule and ProxyPassMatch pattern matches for configuration of a reverse proxy, which allows remote attackers to send requests to intranet servers via a malformed URI containing an initial \@ character . Packages for 2009.0 are provided as of the Extended Maintenance Program