Public bug reported:
Tracking down the problem that led to me filing bug #774273 brought me
to the isc-dhcp-server package which was installed as a dhcp3-server
dependency. After installing the package, gnome-screensaver didn't
work. I found that this is because pam_unix uses unix_chkpwd when it
doesn't have permissions to read /etc/shadow. unix_chkpwd is setgid
"shadow" and the /etc/shadow file is supposed to be read-only for the
"shadow" group.
At some point after the installation (but before the installation of any
other package, according to etckeeper) the group was changed to "root"
on /etc/shadow, breaking gnome-screensaver.
** Affects: isc-dhcp (Ubuntu)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/786998
Title:
/etc/shadow permissions changed after installation
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs