Buffer overflow in Xsun on Solaris 2.6 through 8 allows local users to gain root privileges via a long -co (color database) command line argument.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A33
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14
https://exchange.xforce.ibmcloud.com/vulnerabilities/8703
http://www.securityfocus.com/bid/4408
http://sunsolve.Sun.COM/pub-cgi/retrieve.pl?doc=fpatches%2F108652