Multiple stack-based buffer overflows in Symark PowerBroker 2.8 through 5.0.1 allow local users to gain privileges via a long argv[0] string when executing (1) pbrun, (2) pbsh, or (3) pbksh. NOTE: the product is often installed in environments with trust relationships that facilitate subsequent remote compromises.
https://exchange.xforce.ibmcloud.com/vulnerabilities/40872
http://www.symark.com/support/PBFeb2008Announcement.html