Affected: Ubuntu:16.04:LTS: storebackup, Ubuntu:18.04:LTS: storebackup, Ubuntu:20.04:LTS: storebackup

storeBackup.pl in storeBackup through 3.5 relies on the /tmp/storeBackup.lock pathname, which allows symlink attacks that possibly lead to privilege escalation. (Local users can also create a plain file named /tmp/storeBackup.lock to block use of storeBackup until an admin manually deletes that file.)