Hi Andreas,
I don't do much work in this area so I'm not so sure. I think I recall that Prof Torrellas from UIUC might have had a paper on cache coherence directory side channels? But I could entirely be misattributing there. Just a vague recollection.
Regarding reporting results etc, I think it would be better discussed directly if you want to send me an email about it. This is a research platform rather than an industrial product and most of the code was written by students. General expectation should not be that it's hardened against lots of vulnerabilities.
Thanks,
Jon