Format string vulnerability in powerd.c in Power Daemon (powerd) 2.0.2 and earlier allows remote attackers to execute arbitrary code via format string specifiers in the WHATIDO variable.
https://exchange.xforce.ibmcloud.com/vulnerabilities/24713
http://www.vupen.com/english/advisories/2006/0545
http://www.securityfocus.com/bid/16582