Segmentation fault during apt-get install

Question

$ apt-get install openssh-server fails with Segmentation fault when it attempts to generate keys.

This leaves me with a half-complete installation, but the binaries are in place.

I also notice that simple executing sshd or ssh-keygen also produces a Segmentation fault.

Answer 1

Running debsums indicates that some files have different checksum from the files provided by the debian packages.

$ debsums -s 

indicates that libk5crypto.so.3.1 and libcrypto.so.1.0.0 (and a few more) have status FAILED.

You will want to replace these files with files provided by the debian packages. To find out what package owns a file:

$ dpkg --search /usr/lib/x86_64-linux-gnu/libk5crypto.so.3.1 

This tells us that this file is provided by libk5crypto3. (running the command with libcrypto.so.1.0.0 tells us that it is provided by the libssl1.0.0 package)

Then, simply reinstall the package(s):

$ sudo apt-get --reinstall install libk5crypto3 libssl1.0.0 

Then, attempt to reinstall openssh:

$ sudo apt-get purge openssh-server $ sudo apt-get install openssh-server