With 1000+ Linux distros, it seems like there'd be one with backdoors clandestinely created and distributed by the NSA.
With 1000+ Linux distros, it seems like there'd be one with backdoors clandestinely created and distributed by the NSA.
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That would be too obvious and thus ineffective. In reality it is more likely that they have inserted bugs into various open source software covertly, like we saw with xz.
More likely it's probably a non-free repository that many people choose to use like an Intel driver or something.
Looking at leaks of the past, it's probably more likely that they have an arsenal of bug exploits instead of backdoors when it comes to opensource stuff.
Yeah actually that makes more sense than what I originally said. The US is one of the main buyers of gray-market zero day bugs, way cheaper and less risk than trying to covertly implement bugs.
Exactly. You have to put yourself in the perpetrator's mindset
There was at least one attempt. Back before git the linux kernel was in 1 central repo. There was also a backup repo. It was compromised with a very clever backdoor.
The backdoor was caught but only because it didn't have a reference to the mainline repo.
if ((options == (__WCLONE|__WALL)) && (current->uid = 0)) retval = -EINVAL;
Note the user uid is being set (=) to root instead of being checked(==) for root.
The full story.
https://freedom-to-tinker.com/2013/10/09/the-linux-backdoor-attempt-of-2003/