In BlueZ 5.42, a buffer overflow was observed in pin_code_reply_dump function in tools/parser/hci.c source file. The issue exists because pin array is overflowed by supplied parameter due to lack of boundary checks on size of the buffer from frame pin_code_reply_cp *cp parameter. http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-9800