Urgent: serious backdoor impacts major linux distros Fedora, Kali, openSUSE, Debian
DegenRocket has summarized the info & given you a simple command to check if your Linux machine is vulnerable:
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so you should check if you’re running xz version 5.6.0 or 5.6.1
xz -V
I read somewhere that you should avoid starting xz if you don’t have to and therefore should use, for example,
apt-show-versions xz(Though this has been two days ago and might not be relevant anymore, am not a dev).