Format string vulnerability in RPC wall daemon (rpc.rwalld) for Solaris 2.5.1 through 8 allows remote attackers to execute arbitrary code via format strings in a message that is not properly provided to the syslog function when the wall command cannot be executed.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A79
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A41
http://www.securityfocus.com/bid/4639
http://www.kb.cert.org/vuls/id/638099
http://www.iss.net/security_center/static/8971.php
http://www.cert.org/advisories/CA-2002-10.html
http://archives.neohapsis.com/archives/vulnwatch/2002-q2/0049.html