script: don't read past the end

TrezarCoin · Sep 25, 2014 · be6d87a · be6d87a
1 parent a94496f
commit be6d87a
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/script/interpreter.cpp b/src/script/interpreter.cpp
@@ -839,7 +839,8 @@ class CTransactionSignatureSerializer {
                 itBegin = it;
             }
         }
-        s.write((char*)&itBegin[0], it-itBegin);
+        if (itBegin != scriptCode.end())
+            s.write((char*)&itBegin[0], it-itBegin);
     }
 
     /** Serialize an input of txTo */