GF_Err srpp_Read(GF_Box *s, GF_BitStream *bs)
{
	GF_SRTPProcessBox *ptr = (GF_SRTPProcessBox *)s;

	ISOM_DECREASE_SIZE(s, 16)
	ptr->encryption_algorithm_rtp = gf_bs_read_u32(bs);
	ptr->encryption_algorithm_rtcp = gf_bs_read_u32(bs);
	ptr->integrity_algorithm_rtp = gf_bs_read_u32(bs);
	ptr->integrity_algorithm_rtp = gf_bs_read_u32(bs);
	return gf_isom_box_array_read(s, bs, gf_isom_box_add_default);
}

The product reads data past the end, or before the beginning, of the intended buffer.