The utaudiod daemon in Sun Ray Server Software (SRSS) 4.0, when Solaris Trusted Extensions is enabled, allows local users to access the sessions of arbitrary users via unknown vectors related to "resource leaks."
https://exchange.xforce.ibmcloud.com/vulnerabilities/51742
http://www.vupen.com/english/advisories/2009/1915
http://sunsolve.sun.com/search/document.do?assetkey=1-66-253889-1
http://sunsolve.sun.com/search/document.do?assetkey=1-21-127553-06-1