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[type1] Fix Savannah bug #35608. 

* src/type1/t1parse.c (T1_Get_Private_Dict): Reject too short
dictionaries.
This commit is contained in:
Werner Lemberg 2012-02-26 08:03:57 +01:00
parent 03242f58c4
commit d9577add64
2 changed files with 16 additions and 1 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2012-02-26 Werner Lemberg <wl@gnu.org>
[type1] Fix Savannah bug #35608.
* src/type1/t1parse.c (T1_Get_Private_Dict): Reject too short
dictionaries.
2012-02-26 Werner Lemberg <wl@gnu.org> 2012-02-26 Werner Lemberg <wl@gnu.org>
[bdf] Support `ENCODING -1 <n>' format. [bdf] Support `ENCODING -1 <n>' format.

10
src/type1/t1parse.c
View File

@ -4,7 +4,7 @@
/* */ /* */
/* Type 1 parser (body). */ /* Type 1 parser (body). */
/* */ /* */
/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2008, 2009 by */ /* Copyright 1996-2005, 2008, 2009, 2012 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */ /* */
/* This file is part of the FreeType project, and may only be used, */ /* This file is part of the FreeType project, and may only be used, */
@ -467,6 +467,14 @@
/* we now decrypt the encoded binary private dictionary */ /* we now decrypt the encoded binary private dictionary */
psaux->t1_decrypt( parser->private_dict, parser->private_len, 55665U ); psaux->t1_decrypt( parser->private_dict, parser->private_len, 55665U );
if ( parser->private_len < 4 )
{
FT_ERROR(( "T1_Get_Private_Dict:"
" invalid private dictionary section\n" ));
error = T1_Err_Invalid_File_Format;
goto Fail;
}
/* replace the four random bytes at the beginning with whitespace */ /* replace the four random bytes at the beginning with whitespace */
parser->private_dict[0] = ' '; parser->private_dict[0] = ' ';
parser->private_dict[1] = ' '; parser->private_dict[1] = ' ';