Robin
When I opened /bin/false in leafpad, IIRC it referenced algif-aead.
Hi @stevesr0
/bin/false should be an executable binary file, and not contain something useful (human readable) in leafpad (you may check by viewing the file in midnight commander; highlight it in mc, then press F3, F4, F8 in this order; see screenshot), the file content should start with ELF, if not, it is broken. It comes with the coreutils package, and does nothing except returning exitcode 1 (one). Similar to /bin/true, which returns 0 (zero). If you happen to have broken/accidentally overwritten the file, just reinstall the coreutils package.
$ sudo apt-get --reinstall install coreutils
To check whether it works correctly, simply “ask” it:
$ /bin/false
$ echo $?This must return 1 (one).
I hadn’t checked that before applying the mitigation.
The mitigation shouldn’t have tampered with the file content of /bin/false.
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