I am not deep enough in it, but from the arch-announce mailinglist:

From the upstream report [1]:

openssh does not directly use liblzma. However debian and several other distributions patch openssh to support systemd notification, and libsystemd does depend on lzma.

Arch does not directly link openssh to liblzma, and thus this attack vector is not possible. You can confirm this by issuing the following command:

$(command -v sshd)

However, out of an abundance of caution, we advise users to remove the malicious code from their system by upgrading either way. This is because other yet-to-be discovered methods to exploit the backdoor could exist.

https://www.openwall.com/lists/oss-security/2024/03/29/4

I have the wiha 44008 with interchangable heads, it fine if you don’t need different heads all the time because changing the heads takes some time.