OSV-2018-389 UNKNOWN READ in boost::re_detail_NUMBER::basic_regex_creator<char, boost::regex_traits<char, boo

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=6708 Crash type: UNKNOWN READ Crash state: boost::redetailNUMBER::basicregexcreatorchar, boost::regextraitschar, boo boost::redetailNUMBER::basicregexcreatorchar, boost::regextraitschar, boo...