this post was submitted on 30 Mar 2024
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The only real downside on the open source side is that the fix is also public, and thus the recipe how to exploit the backdoor.
If there's a massive CVE on a closed source system, you get a super high-level description of the issue and that's it.
If there's one on an open source system, you get ready-made "proof of concepts" on github that any script kiddy can exploit.
And since not every software can be updated instantly, you are left with millions of vulnerable servers/PCs and a lot of happy script kiddies.
See, for example, Log4Shell.
In this case it seems the backdoor is only usable with someone who has the correct key. Seeing and reverting something fishy is in some cases, like this easier than finding an exploit. It takes a lot of time in this case to figure out what goes on.
Fixing a bug never automatically give an easy to use exploit for script kiddies