GNU Parallel before 20150422, when using (1) --pipe, (2) --tmux, (3) --cat, (4) --fifo, or (5) --compress, allows local users to write to arbitrary files via a symlink attack on a temporary file.Referenceshttp://lists.gnu.org/archive/html/parallel/2015-04/msg00045.htmlhttp://lists.gnu.org/archive/html/parallel/2015-05/msg00024.htmlhttp://www.securityfocus.com/bid/74962
