From 20a5f610d344dfc1dc0c6e5e9e4b0211370aa563 Mon Sep 17 00:00:00 2001
From: "Wladimir J. van der Laan" <laanwj@gmail.com>
Date: Wed, 29 Oct 2014 16:03:09 +0100
Subject: [PATCH] Don't relay alerts to peers before version negotiation

Fixes #1436
---
 src/alert.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/alert.cpp b/src/alert.cpp
index d49584920..b6d380479 100644
--- a/src/alert.cpp
+++ b/src/alert.cpp
@@ -127,6 +127,9 @@ bool CAlert::RelayTo(CNode* pnode) const
 {
     if (!IsInEffect())
         return false;
+    // don't relay to nodes which haven't sent their version message
+    if (pnode->nVersion == 0)
+        return false;
     // returns true if wasn't already contained in the set
     if (pnode->setKnown.insert(GetHash()).second)
     {