static int asf_read_metadata_obj(AVFormatContext *s, const GUIDParseTable *g)
{
    ASFContext *asf   = s->priv_data;
    AVIOContext *pb   = s->pb;
    uint64_t size     = avio_rl64(pb);
    uint16_t nb_recs  = avio_rl16(pb); // number of records in the Description Records list
    int i, ret;

    for (i = 0; i < nb_recs; i++) {
        uint16_t name_len, buflen, type, val_len, st_num;
        uint8_t *name = NULL;

        avio_skip(pb, 2); // skip reserved field
        st_num   = avio_rl16(pb);
        name_len = avio_rl16(pb);
        buflen   = 2 * name_len + 1;
        if (!name_len)
            break;
        type     = avio_rl16(pb);
        val_len  = avio_rl32(pb);
        name     = av_malloc(buflen);
        if (!name)
            return AVERROR(ENOMEM);
        avio_get_str16le(pb, name_len, name,
                         buflen);
        if (!strcmp(name, "AspectRatioX") || !strcmp(name, "AspectRatioY")) {
            ret = asf_store_aspect_ratio(s, st_num, name, type);
            if (ret < 0) {
                av_freep(&name);
                break;
            }
        } else {
            if (st_num < ASF_MAX_STREAMS) {
                if ((ret = process_metadata(s, name, name_len, val_len, type,
                                            &asf->asf_sd[st_num].asf_met)) < 0) {
                    av_freep(&name);
                    break;
                }
            }
        }
        av_freep(&name);
    }

    align_position(pb, asf->offset, size);
    return 0;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.