This update fixes several security issues in the Apache webserver. The patch for the ByteRange remote denial of service attack was refined and the configuration options used by upstream were added. Introduce new config option: Allow MaxRanges Number of ranges requested, if exceeded, the complete content is served. default: 200 0|unlimited: unlimited none: Range headers are ignored. This option is a backport from 2.2.21. Also fixed: CVE-2011-3348: Denial of service in proxy_ajp when using a undefined method. CVE-2011-3368: Exposure of internal servers via reverse proxy methods with mod_proxy enabled and incorrect Rewrite or Proxy Rules.