Practically speaking it can't - For one the script injected into the build process tests that you're running on x86-64 linux, for another, the injected code is elf code, which wouldn't link on a mac. It also needs to manipulate dynamic linker datastructures, which would also not work the same on a mac.

> This could perhaps affect more than just sshd on x86-64 linux?

This however is true - /usr/sbin/sshd was the only argv[0] value that I found to "work", but it's possible there are others. "/usr/sbin/sshd" isn't a string directly visible in the injected code, so it's hard to tell.

- linux

- x86-64

- building with gcc & the GNU linker

- part of a .deb or .rpm build

Add to that, as the article explains: openssh does not directly use liblzma, the only reason SSH is affected at all, is because some Linux Distros patch openssh to link it against systemd, which does depend on liblzma.

Could it affect things other than SSH on a Mac? Unlikely. The compromise was introduced in 5.6.0, but macOS Sonoma has 5.4.4 (from August last year).