From 548f86b98bba4cd53c8607f55fad6dc3cf6f955f Mon Sep 17 00:00:00 2001
From: Maxime Gimeno <maxime.gimeno@gmail.com>
Date: Tue, 11 Dec 2018 14:35:25 +0100
Subject: [PATCH 1/2] Check stream state before allocating memory.

---
 Surface_mesh/include/CGAL/Surface_mesh/Surface_mesh.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Surface_mesh/include/CGAL/Surface_mesh/Surface_mesh.h b/Surface_mesh/include/CGAL/Surface_mesh/Surface_mesh.h
index ce5490de872..b5099136f3e 100644
--- a/Surface_mesh/include/CGAL/Surface_mesh/Surface_mesh.h
+++ b/Surface_mesh/include/CGAL/Surface_mesh/Surface_mesh.h
@@ -2098,7 +2098,9 @@ private: //------------------------------------------------------- private data
     CGAL_assertion( (off == "OFF") || (off == "COFF") || (off == "NOFF") || (off == "CNOFF"));
 
     is >> n >> f >> e;
-
+    if(!is){
+      return false;
+    }
     sm.reserve(sm.num_vertices()+n, sm.num_faces()+2*f, sm.num_edges()+e);
     std::vector<Vertex_index> vertexmap(n);
     P p;
@@ -2151,6 +2153,10 @@ private: //------------------------------------------------------- private data
     for(int i=0; i < f; i++){
       is >> sm_skip_comments;
       is >> d;
+      if(!is){
+        sm.clear();
+        return false;
+      }
       vr.resize(d);
       for(std::size_t j=0; j<d; j++){
         is >> vi;

From b04369cc6b78c5f1ccf42b9e36a57f0065931b35 Mon Sep 17 00:00:00 2001
From: Maxime Gimeno <maxime.gimeno@gmail.com>
Date: Tue, 11 Dec 2018 14:55:00 +0100
Subject: [PATCH 2/2] Don't assert OFF type

---
 Surface_mesh/include/CGAL/Surface_mesh/Surface_mesh.h | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Surface_mesh/include/CGAL/Surface_mesh/Surface_mesh.h b/Surface_mesh/include/CGAL/Surface_mesh/Surface_mesh.h
index b5099136f3e..947c0c8aeae 100644
--- a/Surface_mesh/include/CGAL/Surface_mesh/Surface_mesh.h
+++ b/Surface_mesh/include/CGAL/Surface_mesh/Surface_mesh.h
@@ -2095,8 +2095,14 @@ private: //------------------------------------------------------- private data
     std::string off;
     is >> sm_skip_comments;
     is >> off;
-    CGAL_assertion( (off == "OFF") || (off == "COFF") || (off == "NOFF") || (off == "CNOFF"));
-
+    if(! (
+         (off == "OFF") || (off == "COFF") || (off == "NOFF") || (off == "CNOFF")
+         )
+       )
+    {
+      is.setstate(std::ios::failbit);
+      return false;
+    }
     is >> n >> f >> e;
     if(!is){
       return false;