--- freetype-2.3.11/src/type42/t42parse.c 2009-07-03 15:28:24.000000000 +0200
+++ freetype-2.3.11/src/type42/t42parse.c 2010-09-23 12:15:56.000000000 +0200
@@ -4,7 +4,7 @@
/* */
/* Type 42 font parser (body). */
/* */
-/* Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */
+/* Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 by */
/* Roberto Alameda. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -575,6 +575,12 @@
}
string_size = T1_ToInt( parser );
+ if ( string_size < 0 )
+ {
+ FT_ERROR(( "t42_parse_sfnts: invalid string size\n" ));
+ error = T42_Err_Invalid_File_Format;
+ goto Fail;
+ }
T1_Skip_PS_Token( parser ); /* `RD' */
if ( parser->root.error )
@@ -582,13 +588,14 @@
string_buf = parser->root.cursor + 1; /* one space after `RD' */
- parser->root.cursor += string_size + 1;
- if ( parser->root.cursor >= limit )
+ if ( limit - parser->root.cursor < string_size )
{
FT_ERROR(( "t42_parse_sfnts: too many binary data\n" ));
error = T42_Err_Invalid_File_Format;
goto Fail;
}
+ else
+ parser->root.cursor += string_size + 1;
}
if ( !string_buf )