modules/arch/win32/mod_isapi.c in mod_isapi in the Apache HTTP Server 2.0.37 through 2.0.63, 2.2.0 through 2.2.14, and 2.3.x before 2.3.7, when running on Windows, does not ensure that request processing is complete before calling isapi_unload for an ISAPI .dll module, which allows remote attackers to execute arbitrary code via unspecified vectors related to a crafted request, a reset packet, and "orphaned callback pointers."
https://www.exploit-db.com/exploits/11650
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8439
https://exchange.xforce.ibmcloud.com/vulnerabilities/56624
http://www.vupen.com/english/advisories/2010/0994
http://www.vupen.com/english/advisories/2010/0634
http://www.vmware.com/security/advisories/VMSA-2010-0014.html
http://www.senseofsecurity.com.au/advisories/SOS-10-002
http://www.securitytracker.com/id?1023701
http://www.oracle.com/technetwork/topics/security/cpujuly2013-1899826.html
http://www.kb.cert.org/vuls/id/280613
http://www-01.ibm.com/support/docview.wss?uid=swg1PM12247
http://www-01.ibm.com/support/docview.wss?uid=swg1PM09447
http://svn.apache.org/viewvc?view=revision&revision=917870
http://svn.apache.org/viewvc/httpd/httpd/trunk/CHANGES?r1=917870&r2=917869&pathrev=917870
http://secunia.com/advisories/39628
http://secunia.com/advisories/38978
http://lists.vmware.com/pipermail/security-announce/2010/000105.html