tmpfiles.d/systemd.conf in systemd before 229 uses weak permissions for /var/log/journal/%m/system.journal, which allows local users to obtain sensitive information by reading the file.
lists.opensuse.org/opensuse-security-announce/2016-04/msg00044.html
lists.opensuse.org/opensuse-updates/2016-05/msg00109.html
www.openwall.com/lists/oss-security/2016/04/08/14
www.openwall.com/lists/oss-security/2016/04/08/15
bugzilla.suse.com/show_bug.cgi?id=972612
github.com/systemd/systemd/commit/afae249efa4774c6676738ac5de6aeb4daf4889f