glusterfs is vulnerable to arbitrary file overwrite attacks. The vulnerability exists as Red Hat Storage 2.0 allows local users to overwrite arbitrary files via a symlink attack on the (1) e, (2) local-bricks.list, (3) bricks.err, or (4) limits.conf files in /tmp.
rhn.redhat.com/errata/RHSA-2013-1205.html
access.redhat.com/errata/RHSA-2013:1205
access.redhat.com/security/cve/CVE-2013-4157
access.redhat.com/security/updates/classification/#low
bugzilla.redhat.com/show_bug.cgi?id=1000423
bugzilla.redhat.com/show_bug.cgi?id=986516
bugzilla.redhat.com/show_bug.cgi?id=997940
rhn.redhat.com/errata/RHSA-2013-1205.html