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| author | Philippe Antoine <contact@catenacyber.fr> | 2020-02-26 16:16:29 +0100 |
|---|---|---|
| committer | Philippe Antoine <contact@catenacyber.fr> | 2020-02-26 16:16:29 +0100 |
| commit | 83fdfe24d09396f293f6e78ecd341526f339a995 (patch) | |
| tree | a8160d61b2f74a3efcaf690e10dfb42d10932ecc /example/reader_util.c | |
| parent | d4c093e828ea0d361b185627101c6ab7d319485e (diff) | |
Fix read overflow before UDP header
Diffstat (limited to 'example/reader_util.c')
| -rw-r--r-- | example/reader_util.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/example/reader_util.c b/example/reader_util.c index 7ab060ef5..f56320976 100644 --- a/example/reader_util.c +++ b/example/reader_util.c @@ -1709,6 +1709,8 @@ ether_type_check: } if(workflow->prefs.decode_tunnels && (proto == IPPROTO_UDP)) { + if (header->caplen < ip_offset + ip_len + sizeof(struct ndpi_udphdr)) + return(nproto); /* Too short for UDP header*/ struct ndpi_udphdr *udp = (struct ndpi_udphdr *)&packet[ip_offset+ip_len]; u_int16_t sport = ntohs(udp->source), dport = ntohs(udp->dest); |