Advisories for Pypi/Httplib2 package

httplib2 is a comprehensive HTTP client library for Python. In httplib2, a malicious server which responds with long series of "\xa0" characters in the "www-authenticate" header may cause Denial of Service (CPU burn while parsing header) of the httplib2 client accessing said server.

In httplib2, an attacker controlling unescaped part of uri for httplib2.Http.request() could change request headers and body, send additional hidden requests to same server. This vulnerability impacts software that uses httplib2 with uri constructed by string concatenation, as opposed to proper urllib building with escaping.