harfbuzz: fix CVE-2022-33068

Backport patch from
62e803b361

The 'tff' file in upstream patch is for testing only which cause error during do_patch so need be dropped.
File test/fuzzing/fonts/sbix-extents.ttf: git binary diffs are not supported.

(From OE-Core rev: 537e7d323f57a0484c279c3b52ad5bb45eb44a10)

Signed-off-by: Wentao Zhang <wentao.zhang@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Wentao Zhang
2022-07-08 08:48:16 +08:00
committed by Richard Purdie
parent b7a414eaf0
commit 917569e54b
2 changed files with 37 additions and 1 deletions

View File

@@ -0,0 +1,35 @@
From 62e803b36173fd096d7ad460dd1d1db9be542593 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Wed, 1 Jun 2022 07:38:21 -0600
Subject: [PATCH] [sbix] Limit glyph extents
Fixes https://github.com/harfbuzz/harfbuzz/issues/3557
Upstream-Status: Backport [https://github.com/harfbuzz/harfbuzz/commit/62e803b36173fd096d7ad460dd1d1db9be542593]
CVE:CVE-2022-33068
Signed-off-by: Wentao Zhang<Wentao.Zhang@windriver.com>
---
src/hb-ot-color-sbix-table.hh | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/hb-ot-color-sbix-table.hh b/src/hb-ot-color-sbix-table.hh
index 9741ebd45..6efae43cd 100644
--- a/src/hb-ot-color-sbix-table.hh
+++ b/src/hb-ot-color-sbix-table.hh
@@ -298,6 +298,12 @@ struct sbix
const PNGHeader &png = *blob->as<PNGHeader>();
+ if (png.IHDR.height >= 65536 | png.IHDR.width >= 65536)
+ {
+ hb_blob_destroy (blob);
+ return false;
+ }
+
extents->x_bearing = x_offset;
extents->y_bearing = png.IHDR.height + y_offset;
extents->width = png.IHDR.width;
--
2.25.1

View File

@@ -11,7 +11,8 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=6ee0f16281694fb6aa689cca1e0fb3da \
UPSTREAM_CHECK_URI = "https://github.com/${BPN}/${BPN}/releases"
UPSTREAM_CHECK_REGEX = "harfbuzz-(?P<pver>\d+(\.\d+)+).tar"
SRC_URI = "https://github.com/${BPN}/${BPN}/releases/download/${PV}/${BPN}-${PV}.tar.xz"
SRC_URI = "https://github.com/${BPN}/${BPN}/releases/download/${PV}/${BPN}-${PV}.tar.xz\
file://CVE-2022-33068.patch"
SRC_URI[sha256sum] = "98f68777272db6cd7a3d5152bac75083cd52a26176d87bc04c8b3929d33bce49"
inherit meson pkgconfig lib_package gtk-doc gobject-introspection