freetype: fix CVE-2023-2004 integer overflowin in tt_hvadvance_adjust() in src/truetype/ttgxvar.c

Fix An integer overflow vulnerability was discovered in Freetype in tt_hvadvance_adjust() function in src/truetype/ttgxvar.c

(From OE-Core rev: 24c87e674db9c1d4a8922c3af78a0004c061e70f)

Signed-off-by: Vivek Kumbhar <vkumbhar@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
This commit is contained in:
Vivek Kumbhar
2023-05-03 07:40:24 +05:30
committed by Steve Sakoman
parent 79dcce4413
commit f668b3ab56
2 changed files with 41 additions and 0 deletions

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@@ -0,0 +1,40 @@
From e6fda039ad638866b7a6a5d046f03278ba1b7611 Mon Sep 17 00:00:00 2001
From: Werner Lemberg <wl@gnu.org>
Date: Mon, 14 Nov 2022 19:18:19 +0100
Subject: [PATCH] * src/truetype/ttgxvar.c (tt_hvadvance_adjust): Integer
overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50462
Upstream-Status: Backport [https://github.com/freetype/freetype/commit/e6fda039ad638866b7a6a5d046f03278ba1b7611]
CVE: CVE-2023-2004
Signed-off-by: Vivek Kumbhar <vkumbhar@mvista.com>
---
src/truetype/ttgxvar.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/truetype/ttgxvar.c b/src/truetype/ttgxvar.c
index 78d87dc..258d701 100644
--- a/src/truetype/ttgxvar.c
+++ b/src/truetype/ttgxvar.c
@@ -43,6 +43,7 @@
#include FT_INTERNAL_DEBUG_H
#include FT_CONFIG_CONFIG_H
#include FT_INTERNAL_STREAM_H
+#include <freetype/internal/ftcalc.h>
#include FT_INTERNAL_SFNT_H
#include FT_TRUETYPE_TAGS_H
#include FT_TRUETYPE_IDS_H
@@ -1065,7 +1066,7 @@
delta == 1 ? "" : "s",
vertical ? "VVAR" : "HVAR" ));
- *avalue += delta;
+ *avalue = ADD_INT( *avalue, delta );
Exit:
return error;
--
2.17.1

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@@ -18,6 +18,7 @@ SRC_URI = "${SAVANNAH_NONGNU_MIRROR}/${BPN}/${BP}.tar.xz \
file://CVE-2022-27404.patch \
file://CVE-2022-27405.patch \
file://CVE-2022-27406.patch \
file://CVE-2023-2004.patch \
"
SRC_URI[md5sum] = "bd42e75127f8431923679480efb5ba8f"
SRC_URI[sha256sum] = "16dbfa488a21fe827dc27eaf708f42f7aa3bb997d745d31a19781628c36ba26f"