ofputil_protocol_from_string__(const char *s, size_t n)
{
    const struct proto_abbrev *p;
    int i;

    for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) {
        enum ofputil_protocol bit = 1u << i;
        const char *name = ofputil_protocol_to_string(bit);

        if (name && n == strlen(name) && !strncasecmp(s, name, n)) {
            return bit;
        }
    }

    for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) {
        if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) {
            return p->protocol;
        }
    }

    return 0;
}

The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.