From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Thu, 24 Mar 2016 15:14:00 +0000 (+0100)
Subject: Check the packet size in dnspcap2protobuf
X-Git-Tag: dnsdist-1.0.0-beta1~59
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4c2862d4ef21186ddc6e69466e88d3c7cee7b55e;p=thirdparty%2Fpdns.git

Check the packet size in dnspcap2protobuf
---

diff --git a/pdns/dnspcap2protobuf.cc b/pdns/dnspcap2protobuf.cc
index 448dcfb78a..2b7698a8aa 100644
--- a/pdns/dnspcap2protobuf.cc
+++ b/pdns/dnspcap2protobuf.cc
@@ -89,6 +89,9 @@ int main(int argc, char **argv)
     if (!dh->qdcount)
       continue;
 
+    if (pr.d_len < sizeof(dnsheader))
+      continue;
+
     uint16_t qtype, qclass;
     DNSName qname;
     try {