shithub: freetype+ttf2subf

Download patch

ref: 0af21dcf13ce44b1624feb3186f0609599355288
parent: 38a3dd55660cdaea2c187e8f24c793cdefba1d3f
author: Werner Lemberg <[email protected]>
date: Sat Oct 17 05:29:52 EDT 2015 

* src/cid/cidload.c (cid_parse_dict): Check `[FG]DBytes' size.

git/fs: mount .git/fs: mount/attach disallowed 
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2015-10-17  Werner Lemberg  <[email protected]>
 
+	* src/cid/cidload.c (cid_parse_dict): Check `[FG]DBytes' size.
+
+2015-10-17  Werner Lemberg  <[email protected]>
+
 	* src/cid/cidgload.c (cid_glyph_load): Check file offsets (#46222).
 
 2015-10-17  Werner Lemberg  <[email protected]>
--- a/src/cid/cidload.c
+++ b/src/cid/cidload.c
@@ -401,6 +401,16 @@
         FT_ERROR(( "cid_parse_dict: No font dictionary found\n" ));
         return FT_THROW( Invalid_File_Format );
       }
+
+      /* allow at most 32bit offsets */
+      if ( face->cid.fd_bytes > 4 || face->cid.gd_bytes > 4 )
+      {
+        FT_ERROR(( "cid_parse_dict:"
+                   " Values of `FDBytes' or `GDBytes' larger than 4\n"
+                   "               "
+                   " are not supported\n" ));
+        return FT_THROW( Invalid_File_Format );
+      }
     }
 
     return parser->root.error;