pajoye          Thu Jul 17 23:13:09 2008 UTC

  Added files:                 (Branch: PHP_5_3)
    /php-src/ext/gd/tests       imageloadfont_invalid.phpt 

  Modified files:              
    /php-src/ext/gd     gd.c 
  Log:
   - MFB: fix crash when some crafted font are given
  
  
http://cvs.php.net/viewvc.cgi/php-src/ext/gd/gd.c?r1=1.312.2.20.2.32.2.10&r2=1.312.2.20.2.32.2.11&diff_format=u
Index: php-src/ext/gd/gd.c
diff -u php-src/ext/gd/gd.c:1.312.2.20.2.32.2.10 
php-src/ext/gd/gd.c:1.312.2.20.2.32.2.11
--- php-src/ext/gd/gd.c:1.312.2.20.2.32.2.10    Tue Jul  8 15:24:12 2008
+++ php-src/ext/gd/gd.c Thu Jul 17 23:13:09 2008
@@ -18,7 +18,7 @@
    +----------------------------------------------------------------------+
  */
 
-/* $Id: gd.c,v 1.312.2.20.2.32.2.10 2008/07/08 15:24:12 tony2001 Exp $ */
+/* $Id: gd.c,v 1.312.2.20.2.32.2.11 2008/07/17 23:13:09 pajoye Exp $ */
 
 /* gd 1.2 is copyright 1994, 1995, Quest Protein Database Center,
    Cold Spring Harbor Labs. */
@@ -1634,6 +1634,19 @@
                body_size = font->w * font->h * font->nchars;
        }
 
+       if (overflow2(font->nchars, font->h)) {
+               php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error reading 
font, invalid font header");
+               efree(font);
+               php_stream_close(stream);
+               RETURN_FALSE;
+       }
+       if (overflow2(font->nchars * font->h, font->w )) {
+               php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error reading 
font, invalid font header");
+               efree(font);
+               php_stream_close(stream);
+               RETURN_FALSE;
+       }
+
        if (body_size != body_size_check) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error reading 
font");
                efree(font);

http://cvs.php.net/viewvc.cgi/php-src/ext/gd/tests/imageloadfont_invalid.phpt?view=markup&rev=1.1
Index: php-src/ext/gd/tests/imageloadfont_invalid.phpt
+++ php-src/ext/gd/tests/imageloadfont_invalid.phpt



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