Apache webserver 2.0.52 and earlier allows remote attackers to cause a denial of service (CPU consumption) via an HTTP GET request with a MIME header containing multiple lines with a large number of space characters.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10962
https://exchange.xforce.ibmcloud.com/vulnerabilities/17930
http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=HPSBUX01123
http://www.vupen.com/english/advisories/2006/0789
http://www.trustix.org/errata/2004/0061/
http://www.redhat.com/support/errata/RHSA-2004-562.html
http://www.mandriva.com/security/advisories?name=MDKSA-2004:135
http://support.avaya.com/elmodocs2/security/ASA-2006-081.htm
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102198-1
http://secunia.com/advisories/19072
http://marc.info/?l=bugtraq&m=110384374213596&w=2
http://lists.grok.org.uk/pipermail/full-disclosure/2004-November/028248.html
http://lists.apple.com/archives/security-announce/2005/Aug/msg00000.html
http://lists.apple.com/archives/security-announce/2005//Aug/msg00001.html