From 5bcb05d4e1304ac3582f1779a25693c0065c69e9 Mon Sep 17 00:00:00 2001
From: MarcoFalke <falke.marco@gmail.com>
Date: Sun, 30 Oct 2016 16:58:13 +0100
Subject: [rpc] ParseHash: Fail when length is not 64

Github-Pull: #9042
Rebased-From: fa326193ad739d1f93da456b3fa73af0bbf9fdd1
---
 src/rpc/server.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/rpc/server.cpp b/src/rpc/server.cpp
index 23149baa6d..102c776314 100644
--- a/src/rpc/server.cpp
+++ b/src/rpc/server.cpp
@@ -146,6 +146,8 @@ uint256 ParseHashV(const UniValue& v, string strName)
         strHex = v.get_str();
     if (!IsHex(strHex)) // Note: IsHex("") is false
         throw JSONRPCError(RPC_INVALID_PARAMETER, strName+" must be hexadecimal string (not '"+strHex+"')");
+    if (64 != strHex.length())
+        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("%s must be of length %d (not %d)", strName, 64, strHex.length()));
     uint256 result;
     result.SetHex(strHex);
     return result;
-- 
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