static int asf_read_content_desc(AVFormatContext *s, const GUIDParseTable *g)
{
    ASFContext *asf = s->priv_data;
    AVIOContext *pb = s->pb;
    int i;
    static const char *const titles[] =
    { "Title", "Author", "Copyright", "Description", "Rate" };
    uint16_t len[5], buflen[5] = { 0 };
    uint8_t *ch;
    uint64_t size = avio_rl64(pb);

    for (i = 0; i < 5; i++) {
        len[i]  = avio_rl16(pb);
        buflen[i]  = 2 * len[i] + 1;
    }

    for (i = 0; i < 5; i++) {
        ch = av_malloc(buflen[i]);
        if (!ch)
            return(AVERROR(ENOMEM));
        asf_read_metadata(s, titles[i], len[i], ch, buflen[i]);
        av_freep(&ch);
    }
    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.