Unspecified vulnerability in iostat in IBM AIX 5.2, 5.3, and 6.1 allows local users to gain privileges via unknown vectors related to an "environment variable handling error."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5424
https://exchange.xforce.ibmcloud.com/vulnerabilities/42579
http://www.vupen.com/english/advisories/2008/1626/references
http://www.securityfocus.com/bid/29325
http://www.ibm.com/support/docview.wss?uid=isg1IZ22351
http://www.ibm.com/support/docview.wss?uid=isg1IZ22350
http://www.ibm.com/support/docview.wss?uid=isg1IZ22349
http://www.ibm.com/support/docview.wss?uid=isg1IZ21506
http://www.ibm.com/support/docview.wss?uid=isg1IZ20635
http://securitytracker.com/id?1020085
http://secunia.com/advisories/30349
http://aix.software.ibm.com/aix/efixes/security/iostat_advisory.asc