Vulnerability

    chfn

Affected

    OpenBSD 2.7

Description

    Riley Hassell found following.   OPENBSD chsh,chfn locking  issue:
    chfn, Control+Z  to through  it in  the background,  then kill the
    process leaving the stale lock-file /etc/ptmp.

    Now users cannot execute chsh, chfn.

Solution

    In this case it's just:

        rm -rf /etc/ptmp