java/org/apache/coyote/ajp/AbstractAjpProcessor.java in Apache Tomcat 8.x before 8.0.4 allows remote attackers to cause a denial of service (thread consumption) by using a "Content-Length: 0" AJP request to trigger a hang in request processing.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-0095
• http://seclists.org/fulldisclosure/2014/May/134
• http://svn.apache.org/viewvc?view=revision&revision=1578392
• http://tomcat.apache.org/security-8.html
• http://www-01.ibm.com/support/docview.wss?uid=swg21678231
• http://www-01.ibm.com/support/docview.wss?uid=swg21681528
• http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html
• apache/tomcat@8884dae
• apache/tomcat80@77590c8
• https://web.archive.org/web/20140713043210/http://www.securitytracker.com/id/1030300
• https://web.archive.org/web/20141126170141/http://www.securityfocus.com/bid/67673
• https://web.archive.org/web/20151017043748/http://secunia.com/advisories/60729
• https://web.archive.org/web/20161024215453/http://secunia.com/advisories/59873