The kernel in Sun Solaris 8 through 10 and OpenSolaris before snv_90 allows local users to bypass chroot, zones, and the Solaris Trusted Extensions multi-level security policy, and establish a covert communication channel, via unspecified vectors involving system calls.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5453
https://exchange.xforce.ibmcloud.com/vulnerabilities/44753
http://www.vupen.com/english/advisories/2008/2460
http://www.securitytracker.com/id?1020780
http://www.securityfocus.com/bid/30880
http://sunsolve.sun.com/search/document.do?assetkey=1-26-240706-1