Please Install the Updated Packages.

It was discovered that httplib2 only validated SSL certificates on the first request to a connection, and didn't report validation failures on subsequent requests. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could possibly be exploited in certain scenarios to alter or compromise confidential information in applications that used the httplib2 library.

python-httplib2 on Ubuntu 13.04 , Ubuntu 12.10 , Ubuntu 12.04 LTS , Ubuntu 10.04 LTS