Apache Sling 2.1.0 Denial Of Service

`CVE-2012-2138 : Apache Sling denial of service vulnerability  
  
Severity: Important  
  
Vendor: The Apache Software Foundation  
  
Versions Affected:  
org.apache.sling.servlets.post bundle up to 2.1.0  
  
Description:  
The @CopyFrom operation of the Sling POST servlet allows for copying a  
parent node to one of its descendant nodes, creating an infinite loop  
that ultimately results in denial of service, once memory and/or  
storage resources are exhausted.  
  
Mitigation:  
Users should upgrade to version 2.1.2 of the  
org.apache.sling.servlets.post bundle [1], or apply the Sling patch of  
revision 1352865 [2].  
  
Example:  
curl -u admin:pwd -d "" "http://localhost:8888/content/foo/?./%40CopyFrom=../"  
  
Credit:  
This issue was discovered by IO Active, working for Adobe.  
  
References:  
[1] http://sling.apache.org/site/downloads.cgi  
[2] http://svn.apache.org/viewvc?view=revision&revision=1352865  
https://issues.apache.org/jira/browse/SLING-2517  
  
  
`