main/freetype: fix CVE-2022-27405 and CVE-2022-27406

(cherry picked from commit 2cac7499017def246acff43ed3bec6e9e857c240)
This commit is contained in:
Natanael Copa 2022-05-18 12:57:26 +02:00
parent 3325dcc9da
commit 3d54e67ea7
3 changed files with 71 additions and 1 deletions

View File

@ -2,7 +2,7 @@
# Maintainer: Carlo Landmeter <clandmeter@alpinelinux.org>
pkgname=freetype
pkgver=2.10.4
pkgrel=2
pkgrel=3
pkgdesc="TrueType font rendering library"
url="https://www.freetype.org/"
arch="all"
@ -14,9 +14,14 @@ source="https://download.savannah.gnu.org/releases/freetype/freetype-$pkgver.tar
0001-Enable-table-validation-modules.patch
subpixel.patch
CVE-2022-27404.patch
CVE-2022-27405.patch
CVE-2022-27406.patch
"
# secfixes:
# 2.10.4-r3:
# - CVE-2022-27405
# - CVE-2022-27406
# 2.10.4-r2:
# - CVE-2022-27404
# 2.10.4-r0:
@ -59,4 +64,6 @@ sha512sums="
580fe59acddfd41966e387bdb6a88336b8bc119cc3d60d8689be20c96fb0dd07c5138ea31f6cb9c854f497ecb41c3adc49eb3ec16a34b2e010e8294851770763 0001-Enable-table-validation-modules.patch
72883fa203fd2552a7b1b8c39b4aaa68d407c62c289236031cd0fa1c8cdc6ad38e90d3b53f8ee682064986d09c9455961f4941c80566b150d15d5539a716c190 subpixel.patch
a00040fddd30f8b7add990c4614cbe69a04d702c471064eaf1f28b70a24c35e25e430bc8ae1d90f198b3e432d90c8884519db30fab2e41e467892d79f5cdee8f CVE-2022-27404.patch
4e4ed4b325ca8dbbd7362782867901b90eef48cb78d6a030769c33add029d4f61ddafe590c1cca35edd8e2b0c128106b7e01874acf52ac7c2b475f4ca6cf8cdf CVE-2022-27405.patch
574f0a93a022ba8bae4440012dd4062841187e1af4e906e5a8f117549a7e528e9d4a0bd35833294248f3a71b299175cbf6d144231af29d8d2dd350bc7dc5b804 CVE-2022-27406.patch
"

View File

@ -0,0 +1,36 @@
From 22a0cccb4d9d002f33c1ba7a4b36812c7d4f46b5 Mon Sep 17 00:00:00 2001
From: Werner Lemberg <wl@gnu.org>
Date: Sat, 19 Mar 2022 06:40:17 +0100
Subject: [PATCH] * src/base/ftobjs.c (ft_open_face_internal): Properly guard
`face_index`.
We must ensure that the cast to `FT_Int` doesn't change the sign.
Fixes #1139.
---
src/base/ftobjs.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/base/ftobjs.c b/src/base/ftobjs.c
index 2c0f0e6c9..10952a6c6 100644
--- a/src/base/ftobjs.c
+++ b/src/base/ftobjs.c
@@ -2527,6 +2527,15 @@
#endif
+ /* only use lower 31 bits together with sign bit */
+ if ( face_index > 0 )
+ face_index &= 0x7FFFFFFFL;
+ else
+ {
+ face_index &= 0x7FFFFFFFL;
+ face_index = -face_index;
+ }
+
#ifdef FT_DEBUG_LEVEL_TRACE
FT_TRACE3(( "FT_Open_Face: " ));
if ( face_index < 0 )
--
GitLab

View File

@ -0,0 +1,27 @@
From 0c2bdb01a2e1d24a3e592377a6d0822856e10df2 Mon Sep 17 00:00:00 2001
From: Werner Lemberg <wl@gnu.org>
Date: Sat, 19 Mar 2022 09:37:28 +0100
Subject: [PATCH] * src/base/ftobjs.c (FT_Request_Size): Guard `face->size`.
Fixes #1140.
---
src/base/ftobjs.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/base/ftobjs.c b/src/base/ftobjs.c
index 6492a1517..282c9121a 100644
--- a/src/base/ftobjs.c
+++ b/src/base/ftobjs.c
@@ -3409,6 +3409,9 @@
if ( !face )
return FT_THROW( Invalid_Face_Handle );
+ if ( !face->size )
+ return FT_THROW( Invalid_Size_Handle );
+
if ( !req || req->width < 0 || req->height < 0 ||
req->type >= FT_SIZE_REQUEST_TYPE_MAX )
return FT_THROW( Invalid_Argument );
--
GitLab