A vulnerability was found in libssh, where an uninitialized variable exists under certain conditions in the privatekey_from_file() function. This flaw can be triggered if the file specified by the filename doesn't exist and may lead to possible signing failures or heap corruption.
https://git.libssh.org/projects/libssh.git/commit/?id=b35ee876adc92a208d47194772e99f9c71e0bedb
https://git.libssh.org/projects/libssh.git/commit/?id=697650caa97eaf7623924c75f9fcfec6dd423cd1