ACLCHECK module in Novell iChain 2.3 allows attackers to bypass access control rules of an unspecified component via an unspecified attack vector involving a string that contains escape sequences represented with "overlong UTF-8 encoding."
https://exchange.xforce.ibmcloud.com/vulnerabilities/17132
http://www.securityfocus.com/bid/11061
http://support.novell.com/cgi-bin/search/searchtid.cgi?2972080.htm