CVE-2017-5341 The OTV parser in tcpdump before 4.9.0 has a buffer overflow in print-otv.c:otv_print()

Reported to the project maintainers in 2016. The function sig_print() did receive a correct caplen parameter value but didn't use it correctly which could cause a read outside of buffer. Fixed by https://github.com/the-tcpdump-group/tcpdump/commit/409ffe94529df3d8bb8258bf99586f821756cb29.