I'm running Ubuntu Server 12.04 LTS and since the latest update of the
passwd program I can't logon to the System anymore. If I enter a vaild user password the system shows me the login dialog again or closes the connection if I try to logon using ssh. If I enter a wrong password the system reacts as usual. The only way to get access to a shell is to boot into the recovery mode.
Moreover if I enter
passwd <Username> in the recorvery mode root shell the passwd application simply closes itself.
What can I do to solve this problem? I thought about compiling the program and trying the self-compiled version.