From 9d7cd4c598edfff12f1f80629c9149b3f1cf75a6 Mon Sep 17 00:00:00 2001
From: Andy Alness <andy@coinbase.com>
Date: Sat, 20 Sep 2014 16:13:18 -0700
Subject: [PATCH] Don't return an address for invalid pubkeys

---
 src/script/standard.cpp | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/script/standard.cpp b/src/script/standard.cpp
index 407baf621d..53ae254d59 100644
--- a/src/script/standard.cpp
+++ b/src/script/standard.cpp
@@ -203,7 +203,11 @@ bool ExtractDestination(const CScript& scriptPubKey, CTxDestination& addressRet)
 
     if (whichType == TX_PUBKEY)
     {
-        addressRet = CPubKey(vSolutions[0]).GetID();
+        CPubKey pubKey(vSolutions[0]);
+        if (!pubKey.IsValid())
+            return false;
+
+        addressRet = pubKey.GetID();
         return true;
     }
     else if (whichType == TX_PUBKEYHASH)
@@ -237,9 +241,16 @@ bool ExtractDestinations(const CScript& scriptPubKey, txnouttype& typeRet, vecto
         nRequiredRet = vSolutions.front()[0];
         for (unsigned int i = 1; i < vSolutions.size()-1; i++)
         {
-            CTxDestination address = CPubKey(vSolutions[i]).GetID();
+            CPubKey pubKey(vSolutions[i]);
+            if (!pubKey.IsValid())
+                continue;
+
+            CTxDestination address = pubKey.GetID();
             addressRet.push_back(address);
         }
+
+        if (addressRet.empty())
+            return false;
     }
     else
     {