Firefox gets closed-source DRM

Posted May 14, 2014 19:35 UTC (Wed) by ballombe (subscriber, #9523)
In reply to: Firefox gets closed-source DRM by gerv
Parent article: Firefox gets closed-source DRM

How do you mediate access by the CDM to memory?
Whatever is containing the CDM from reading all the computer memory is also able to point it to a trusted copy of the sandbox (or simply ptrace the sandbox).

Thus, either the sandbox is a joke or the CDM is.

Firefox gets closed-source DRM

Posted May 14, 2014 22:22 UTC (Wed) by KaiRo (subscriber, #1987) [Link]

Well, the CDM can only access the memory of the low-privilege process it is running in, that' one of the main reasons why it's a sandbox in a separate process.

As for how much of a joke the CDM and the whole DRM technologies used today are, psst, don't tell Hollywood about it or they'll think about doing even weirder and worse stuff than they agree to right now. :p
(But really, I mostly see it as a token of "we seriously tried to secure our content" so that the appended legal material will hold in front of the courts...)