1Cairo: Fix Denial-of-Service Attack due to Logical Problem in Program
2
3https://bugs.freedesktop.org/show_bug.cgi?id=100763
4
5CVE: CVE-2017-7475
6Upstream-Status: Submitted
7
8Signed-off-by: Fan Xin <fan.xin@jp.fujitsu.com>
9
10Index: cairo-1.15.4/src/cairo-ft-font.c
11===================================================================
12--- cairo-1.15.4.orig/src/cairo-ft-font.c
13+++ cairo-1.15.4/src/cairo-ft-font.c
14@@ -1149,7 +1149,7 @@ _get_bitmap_surface (FT_Bitmap		     *bi
15     width = bitmap->width;
16     height = bitmap->rows;
17
18-    if (width == 0 || height == 0) {
19+    if (width == 0 || height == 0 || bitmap->buffer == NULL) {
20 	*surface = (cairo_image_surface_t *)
21 	    cairo_image_surface_create_for_data (NULL, format, 0, 0, 0);
22 	return (*surface)->base.status;
23