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package-update/x11/freetype/CVE-2006-1861.patch

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# --- T2-COPYRIGHT-NOTE-BEGIN ---
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
#
# T2 SDE: package/.../freetype/CVE-2006-1861.patch
# Copyright (C) 2006 The T2 SDE Project
#
# More information can be found in the files COPYING and README.
#
# This patch file is dual-licensed. It is available under the license the
# patched project is licensed under, as long as it is an OpenSource license
# as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
# of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
# --- T2-COPYRIGHT-NOTE-END ---
diff -Nur freetype-2.1.10-orig/include/freetype/fterrdef.h freetype-2.1.10/include/freetype/fterrdef.h
--- freetype-2.1.10-orig/include/freetype/fterrdef.h 2004-02-12 08:33:20.000000000 +0000
+++ freetype-2.1.10/include/freetype/fterrdef.h 2006-05-31 22:53:15.329323750 +0000
@@ -4,7 +4,7 @@
/* */
/* FreeType error codes (specification). */
/* */
-/* Copyright 2002, 2004 by */
+/* Copyright 2002, 2004, 2006 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -226,6 +226,8 @@
"`ENCODING' field missing" )
FT_ERRORDEF_( Missing_Bbx_Field, 0xB6, \
"`BBX' field missing" )
+ FT_ERRORDEF_( Bbx_Too_Big, 0xB7, \
+ "`BBX' too big" )
/* END */
diff -Nur freetype-2.1.10-orig/src/bdf/bdflib.c freetype-2.1.10/src/bdf/bdflib.c
--- freetype-2.1.10-orig/src/bdf/bdflib.c 2005-05-21 17:19:52.000000000 +0000
+++ freetype-2.1.10/src/bdf/bdflib.c 2006-05-31 22:53:15.333324000 +0000
@@ -1092,6 +1092,7 @@
#define ERRMSG1 "[line %ld] Missing \"%s\" line.\n"
#define ERRMSG2 "[line %ld] Font header corrupted or missing fields.\n"
#define ERRMSG3 "[line %ld] Font glyphs corrupted or missing fields.\n"
+#define ERRMSG4 "[line %ld] BBX too big.\n"
static FT_Error
@@ -1805,6 +1806,9 @@
/* And finally, gather up the bitmap. */
if ( ft_memcmp( line, "BITMAP", 6 ) == 0 )
{
+ unsigned long bitmap_size;
+
+
if ( !( p->flags & _BDF_BBX ) )
{
/* Missing BBX field. */
@@ -1815,7 +1819,16 @@
/* Allocate enough space for the bitmap. */
glyph->bpr = ( glyph->bbx.width * p->font->bpp + 7 ) >> 3;
- glyph->bytes = (unsigned short)( glyph->bpr * glyph->bbx.height );
+
+ bitmap_size = glyph->bpr * glyph->bbx.height;
+ if ( bitmap_size > 0xFFFFU )
+ {
+ FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG4, lineno ));
+ error = BDF_Err_Bbx_Too_Big;
+ goto Exit;
+ }
+ else
+ glyph->bytes = (unsigned short)bitmap_size;
if ( FT_NEW_ARRAY( glyph->bitmap, glyph->bytes ) )
goto Exit;
diff -Nur freetype-2.1.10-orig/src/cff/cffgload.c freetype-2.1.10/src/cff/cffgload.c
--- freetype-2.1.10-orig/src/cff/cffgload.c 2005-04-18 04:53:05.000000000 +0000
+++ freetype-2.1.10/src/cff/cffgload.c 2006-05-31 23:03:31.567836250 +0000
@@ -2284,7 +2284,7 @@
FT_LOCAL_DEF( FT_Error )
cff_slot_load( CFF_GlyphSlot glyph,
CFF_Size size,
- FT_Int glyph_index,
+ FT_UInt glyph_index,
FT_Int32 load_flags )
{
FT_Error error;
@@ -2330,7 +2330,7 @@
error = sfnt->load_sbit_image( face,
(FT_ULong)size->strike_index,
- (FT_UInt)glyph_index,
+ glyph_index,
(FT_Int)load_flags,
stream,
&glyph->root.bitmap,
@@ -2393,7 +2393,12 @@
/* subsetted font, glyph_indices and CIDs are identical, though */
if ( cff->top_font.font_dict.cid_registry != 0xFFFFU &&
cff->charset.cids )
- glyph_index = cff->charset.cids[glyph_index];
+ {
+ if ( glyph_index < cff->charset.max_cid )
+ glyph_index = cff->charset.cids[glyph_index];
+ else
+ glyph_index = 0;
+ }
cff_decoder_init( &decoder, face, size, glyph, hinting,
FT_LOAD_TARGET_MODE( load_flags ) );
diff -Nur freetype-2.1.10-orig/src/cff/cffgload.h freetype-2.1.10/src/cff/cffgload.h
--- freetype-2.1.10-orig/src/cff/cffgload.h 2004-05-13 21:59:17.000000000 +0000
+++ freetype-2.1.10/src/cff/cffgload.h 2006-05-31 22:53:24.161875750 +0000
@@ -4,7 +4,7 @@
/* */
/* OpenType Glyph Loader (specification). */
/* */
-/* Copyright 1996-2001, 2002, 2003, 2004 by */
+/* Copyright 1996-2001, 2002, 2003, 2004, 2006 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -196,7 +196,7 @@
FT_LOCAL( FT_Error )
cff_slot_load( CFF_GlyphSlot glyph,
CFF_Size size,
- FT_Int glyph_index,
+ FT_UInt glyph_index,
FT_Int32 load_flags );
diff -Nur freetype-2.1.10-orig/src/cff/cffload.c freetype-2.1.10/src/cff/cffload.c
--- freetype-2.1.10-orig/src/cff/cffload.c 2005-05-06 05:49:46.000000000 +0000
+++ freetype-2.1.10/src/cff/cffload.c 2006-05-31 22:53:24.161875750 +0000
@@ -1688,6 +1688,8 @@
for ( i = 0; i < num_glyphs; i++ )
charset->cids[charset->sids[i]] = (FT_UShort)i;
+
+ charset->max_cid = max_cid;
}
Exit:
diff -Nur freetype-2.1.10-orig/src/cff/cfftypes.h freetype-2.1.10/src/cff/cfftypes.h
--- freetype-2.1.10-orig/src/cff/cfftypes.h 2003-12-20 07:30:05.000000000 +0000
+++ freetype-2.1.10/src/cff/cfftypes.h 2006-05-31 22:53:24.165876000 +0000
@@ -5,7 +5,7 @@
/* Basic OpenType/CFF type definitions and interface (specification */
/* only). */
/* */
-/* Copyright 1996-2001, 2002, 2003 by */
+/* Copyright 1996-2001, 2002, 2003, 2006 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -84,6 +84,7 @@
FT_UShort* sids;
FT_UShort* cids; /* the inverse mapping of `sids'; only needed */
/* for CID-keyed fonts */
+ FT_UInt max_cid;
} CFF_CharsetRec, *CFF_Charset;
diff -Nur freetype-2.1.10-orig/src/sfnt/ttcmap.c freetype-2.1.10/src/sfnt/ttcmap.c
--- freetype-2.1.10-orig/src/sfnt/ttcmap.c 2005-05-11 14:37:40.000000000 +0000
+++ freetype-2.1.10/src/sfnt/ttcmap.c 2006-05-31 22:57:04.807665250 +0000
@@ -2144,9 +2144,7 @@
charmap.encoding = FT_ENCODING_NONE; /* will be filled later */
offset = TT_NEXT_ULONG( p );
- if ( offset &&
- table + offset + 2 < limit &&
- table + offset >= table )
+ if ( offset && offset <= face->cmap_size -2 )
{
FT_Byte* cmap = table + offset;
volatile FT_UInt format = TT_PEEK_USHORT( cmap );