From 45a1c4c0885584554668c89bd6976474af01e2f5 Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Mon, 11 Dec 2017 22:36:58 +0000
Subject: add empty container sanity checks when using front() and back()

---
 src/rpc/daemon_handler.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/rpc/daemon_handler.cpp')

diff --git a/src/rpc/daemon_handler.cpp b/src/rpc/daemon_handler.cpp
index 6643ce4e4..908f9e187 100644
--- a/src/rpc/daemon_handler.cpp
+++ b/src/rpc/daemon_handler.cpp
@@ -799,6 +799,10 @@ namespace rpc
     }
 
     header.hash = hash_in;
+    if (b.miner_tx.vin.size() != 1 || b.miner_tx.vin.front().type() != typeid(txin_gen))
+    {
+      return false;
+    }
     header.height = boost::get<txin_gen>(b.miner_tx.vin.front()).height;
 
     header.major_version = b.major_version;
-- 
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