openvpn:fuzz_proxy: Stack-buffer-overflow in unicodize

Detailed Report: https://oss-fuzz.com/testcase?key=4909025455112192 Project: openvpn Fuzzing Engine: honggfuzz Fuzz Target: fuzzproxy Job Type: honggfuzzasanopenvpn Platform Id: linux Crash Type: Stack-buffer-overflow WRITE 1 Crash Address: 0x7fff8ccc9320 Crash State: unicodize ntlmphase3...