Cisco Cisco Web Security Appliance S380 Release Notes

 lists the issues that were resolved in version 7.1.1 of AsyncOS for Web.

77757

Fixed: Web Proxy stops processing client traffic after receiving a forged DNS 
request in some cases 

Previously, when the Web Proxy received a forged DNS request in a UDP packet with 
a source IP address of 127.x.x.x, it stopped processing DNS requests and was unable 
to process client traffic. This no longer occurs.

72227

Previously, the Web Proxy generated a core file when processing multiple 
simultaneous connections to a web server that does not include a blank end of header 
line in its response. This no longer occurs. 

75668

Previously, LDAP authentication intermittently failed when using group authorization 
due to leaked LDAP connections. This no longer occurs.

72380, 75545

Fixed: Web Proxy generates a core file when processing an explicit POST request 
to a hostname that is unresolvable by DNS 

Previously, the Web Proxy generated a core file when processing an explicit POST 
request to a hostname that is unresolvable by DNS. This no longer occurs. 

75167

Previously, the Web Proxy began to fail some requests while processing simultaneous 
large downloads on S160 models. The Proxy logs included an error message saying 
“Out of memory blocks in DataChunk_Alloc.” This no longer occurs. 

74073

Previously, the Web Proxy generated a core file when processing a POST request to a 
domain name that did not resolve in some cases. This no longer occurs.