diff options
| author | Philippe Antoine <contact@catenacyber.fr> | 2020-02-26 17:12:46 +0100 |
|---|---|---|
| committer | Philippe Antoine <contact@catenacyber.fr> | 2020-02-26 17:12:46 +0100 |
| commit | 6fe95358812323fcf614fba8f8e5a43f43d164bb (patch) | |
| tree | b8c62970596456666cb91a1a79a0ae07cf933ab3 /src | |
| parent | 5fc9d41eb0b337958fb7c7446ca690f8ba361285 (diff) | |
Adds check before memcpy for bittorrent
Diffstat (limited to 'src')
| -rw-r--r-- | src/lib/protocols/bittorrent.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/lib/protocols/bittorrent.c b/src/lib/protocols/bittorrent.c index a1ade79b2..d0773e43a 100644 --- a/src/lib/protocols/bittorrent.c +++ b/src/lib/protocols/bittorrent.c @@ -72,7 +72,7 @@ static void ndpi_add_connection_as_bittorrent(struct ndpi_detection_module_struc } else bt_hash = (const char*)&flow->packet.payload[28]; - if(bt_hash) memcpy(flow->protos.bittorrent.hash, bt_hash, 20); + if(bt_hash && flow->packet.payload_packet_len >= 20 + (bt_hash-flow->packet.payload)) memcpy(flow->protos.bittorrent.hash, bt_hash, 20); } ndpi_int_change_protocol(ndpi_struct, flow, NDPI_PROTOCOL_BITTORRENT, NDPI_PROTOCOL_UNKNOWN); |