1 files changed, 45 insertions, 0 deletions
diff --git a/poky/meta/recipes-graphics/cairo/cairo/0001-cairo-Fix-CVE-2017-9814.patch b/poky/meta/recipes-graphics/cairo/cairo/0001-cairo-Fix-CVE-2017-9814.patch
new file mode 100644
index 000000000..7d02ab947
--- /dev/null
+++ b/poky/meta/recipes-graphics/cairo/cairo/0001-cairo-Fix-CVE-2017-9814.patch
@@ -0,0 +1,45 @@
+From 042421e9e3d266ad0bb7805132041ef51ad3234d Mon Sep 17 00:00:00 2001
+From: Adrian Johnson <ajohnson@redneon.com>
+Date: Wed, 16 Aug 2017 22:52:35 -0400
+Subject: [PATCH] cairo: Fix CVE-2017-9814
+
+The bug happens because in some scenarios the variable size can
+have a value of 0 at line 1288. And malloc(0) is not returning
+NULL as some people could expect:
+
+    https://stackoverflow.com/questions/1073157/zero-size-malloc
+
+malloc(0) returns the smallest chunk possible. So the line 1290
+with the return is not execute. And the execution continues with
+an invalid map.
+
+Since the size is 0 the variable map is not initialized correctly
+at load_trutype_table. So, later when the variable map is accessed
+previous values from a freed chunk are used. This could allows an
+attacker to control the variable map.
+
+This patch have not merge in upstream now.
+
+Upstream-Status: Backport [https://bugs.freedesktop.org/show_bug.cgi?id=101547]
+CVE: CVE-2017-9814
+Signed-off-by: Dengke Du <dengke.du@windriver.com>
+---
+ src/cairo-truetype-subset.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/cairo-truetype-subset.c b/src/cairo-truetype-subset.c
+index e3449a0..f77d11c 100644
+--- a/src/cairo-truetype-subset.c
++++ b/src/cairo-truetype-subset.c
+@@ -1285,7 +1285,7 @@ _cairo_truetype_reverse_cmap (cairo_scaled_font_t *scaled_font,
+ 	return CAIRO_INT_STATUS_UNSUPPORTED;
+ 
+     size = be16_to_cpu (map->length);
+-    map = malloc (size);
++    map = _cairo_malloc (size);
+     if (unlikely (map == NULL))
+ 	return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+ 
+-- 
+2.8.1
+