The HTTP BIO connector in Apache Tomcat 7.0.x before 7.0.12 does not properly handle HTTP pipelining, which allows remote attackers to read responses intended for other clients in opportunistic circumstances by examining the application data in HTTP packets, related to "a mix-up of responses for requests from different users."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12374
https://issues.apache.org/bugzilla/show_bug.cgi?id=50957
https://exchange.xforce.ibmcloud.com/vulnerabilities/66676
http://www.vupen.com/english/advisories/2011/0894
http://www.securitytracker.com/id?1025303
http://www.securityfocus.com/bid/47199
http://www.securityfocus.com/archive/1/517363
http://tomcat.apache.org/security-7.html
http://svn.apache.org/viewvc?view=revision&revision=1086352
http://svn.apache.org/viewvc?view=revision&revision=1086349