int tls1_set_sigalgs(CERT *c, const int *psig_nids, size_t salglen, int client)
{
    unsigned char *sigalgs, *sptr;
    int rhash, rsign;
    size_t i;
    if (salglen & 1)
        return 0;
    sigalgs = OPENSSL_malloc(salglen);
    if (sigalgs == NULL)
        return 0;
    for (i = 0, sptr = sigalgs; i < salglen; i += 2) {
        rhash = tls12_find_id(*psig_nids++, tls12_md, OSSL_NELEM(tls12_md));
        rsign = tls12_find_id(*psig_nids++, tls12_sig, OSSL_NELEM(tls12_sig));

        if (rhash == -1 || rsign == -1)
            goto err;
        *sptr++ = rhash;
        *sptr++ = rsign;
    }

    if (client) {
        OPENSSL_free(c->client_sigalgs);
        c->client_sigalgs = sigalgs;
        c->client_sigalgslen = salglen;
    } else {
        OPENSSL_free(c->conf_sigalgs);
        c->conf_sigalgs = sigalgs;
        c->conf_sigalgslen = salglen;
    }

    return 1;

 err:
    OPENSSL_free(sigalgs);
    return 0;
}

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.