diff options
Diffstat (limited to 'src/lib/protocols/dns.c')
| -rw-r--r-- | src/lib/protocols/dns.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/lib/protocols/dns.c b/src/lib/protocols/dns.c index 1c2593feb..dc97f3fe7 100644 --- a/src/lib/protocols/dns.c +++ b/src/lib/protocols/dns.c @@ -190,11 +190,11 @@ void ndpi_search_dns(struct ndpi_detection_module_struct *ndpi_struct, struct nd flow->protos.dns.rsp_type = rsp_type; /* here x points to the response "class" field */ - if((x+12) < flow->packet.payload_packet_len) { + if((x+12) <= flow->packet.payload_packet_len) { x += 6; data_len = get16(&x, flow->packet.payload); - if(((x + data_len) < flow->packet.payload_packet_len) + if(((x + data_len) <= flow->packet.payload_packet_len) && (((rsp_type == 0x1) && (data_len == 4)) /* A */ #ifdef NDPI_DETECTION_SUPPORT_IPV6 || ((rsp_type == 0x1c) && (data_len == 16)) /* AAAA */ |