int tls1_set_sigalgs_list(CERT *c, const char *str, int client)
{
    sig_cb_st sig;
    sig.sigalgcnt = 0;
    if (!CONF_parse_list(str, ':', 1, sig_cb, &sig))
        return 0;
    if (c == NULL)
        return 1;
    return tls1_set_sigalgs(c, sig.sigalgs, sig.sigalgcnt, client);
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.