this post was submitted on 09 Apr 2024
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I was running 12 stable on a machine that had been updated and upgraded in between the time when the backdoor was introduced and when it was discovered. At no point in time did either dpkg query or the self report show that system had the affected 5.6.0(?) version.
Stable had versions of xz that contained commits from the attacker and has been walked back to before those were made out of an abundance of caution.
There’s a lot of eyes on that software now and I haven’t seen anyone report that versions between the attacker gaining commit rights and the attacked version were compromised yet, as you said though: that doesn’t mean it isn’t and vulnerabilities have existed for many years without being discovered.
As to whether it’s a good argument, vulnerabilities have a short lifespan generally. Just hanging back and waiting a little while for something to crop up is usually enough to avoid them. If you don’t believe me, check the nist database.
I’m gonna sound like a goober here, but the easiest way to not trip is to slow down and look where you’re going.