Check size after Unserializing CPubKey

Author: elichai

src/pubkey.h

@@ -142,6 +142,9 @@ class CPubKey
         unsigned int len = ::ReadCompactSize(s);
         if (len <= SIZE) {
             s.read((char*)vch, len);
+            if (len != size()) {
+                Invalidate();
+            }
         } else {
             // invalid pubkey, skip available data
             char dummy;