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package/gd: fix CVE-2021-38115

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read_header_tga in gd_tga.c in the GD Graphics Library (aka LibGD)
through 2.3.2 allows remote attackers to cause a denial of service
(out-of-bounds read) via a crafted TGA file.

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Fabrice Fontaine 2021-08-14 22:43:34 +02:00 committed by Thomas Petazzoni
parent d02d60071d
commit 0eebfba388
2 changed files with 32 additions and 0 deletions
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29
package/gd/0001-fix-read-out-of-bands-in-reading-tga-header-file.patch Normal file
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@ -0,0 +1,29 @@
From 8b111b2b4a4842179be66db68d84dda91a246032 Mon Sep 17 00:00:00 2001
From: maryam ebrahimzadeh <maryam.ebr@student.sharif.edu>
Date: Mon, 19 Jul 2021 10:07:13 +0430
Subject: [PATCH] fix read out-of-bands in reading tga header file
[Retrieved from:
https://github.com/libgd/libgd/commit/8b111b2b4a4842179be66db68d84dda91a246032]
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
src/gd_tga.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/gd_tga.c b/src/gd_tga.c
index cae9428da..286febb28 100644
--- a/src/gd_tga.c
+++ b/src/gd_tga.c
@@ -191,7 +191,11 @@ int read_header_tga(gdIOCtx *ctx, oTga *tga)
return -1;
}
- gdGetBuf(tga->ident, tga->identsize, ctx);
+
+ if (gdGetBuf(tga->ident, tga->identsize, ctx) != tga->identsize) {
+ gd_error("fail to read header ident");
+ return -1;
+ }
}
return 1;

3
package/gd/gd.mk
View File

@ -15,6 +15,9 @@ GD_CPE_ID_PRODUCT = libgd
GD_CONF_OPTS = --without-x --disable-rpath --disable-werror
GD_DEPENDENCIES = host-pkgconf
# 0001-fix-read-out-of-bands-in-reading-tga-header-file.patch
GD_IGNORE_CVES += CVE-2021-38115
# gd forgets to link utilities with -pthread even though it uses
# pthreads, causing linking errors with static linking
ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)