A fake certificate issued by a US company called Cyberoam was used to trick a user in Jordan into believing that her/his connection to the TOR website, was private and secure. The issue was discovered and analysed by Runa A. Sandvik of the TorProject and Ben Laurie. Users should uninstall the certificate in question from their browsers and decline to complete any connection which gives acertificate warning. Tor Browser Bundle are not impacted, but other users should check to ensure that the certificate is not installed in their web browser.
Source: https://thehackernews.com/2012/07/cve-2012-3372-traffic-interception.html