This gets solved on Kubuntu 14.04 / KDE by doing:
$ sudo chown root:root /usr/lib/kde4/libexec/kcheckpass $ sudo chmod 4755 /usr/lib/kde4/libexec/kcheckpass
This bug reappears after every (system?) upgrade (!!!)
See: https://bugs.kde.org/show_bug.cgi?id=300017
This gets solved on Kubuntu 14.04 / KDE by doing:
$ sudo chown root:root /usr/lib/ kde4/libexec/ kcheckpass kde4/libexec/ kcheckpass
$ sudo chmod 4755 /usr/lib/
This bug reappears after every (system?) upgrade (!!!)
See: https:/ /bugs.kde. org/show_ bug.cgi? id=300017