mirror of
https://gitlab.alpinelinux.org/alpine/aports.git
synced 2025-08-05 13:27:09 +02:00
7f6b53170f
CVE-2017-17784, CVE-2017-17785, CVE-2017-17786, CVE-2017-17787, CVE-2017-17789 Fixes #8350 CVE-2017-17788 applies only to >= v2.9.6
54 lines
2.0 KiB
Diff
54 lines
2.0 KiB
Diff
From ef9c821fff8b637a2178eab1c78cae6764c50e12 Mon Sep 17 00:00:00 2001
|
|
From: Jehan <jehan@girinstud.io>
|
|
Date: Wed, 20 Dec 2017 13:02:38 +0100
|
|
Subject: Bug 739134 - (CVE-2017-17786) Out of bounds read / heap overflow
|
|
in...
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
... TGA importer.
|
|
|
|
Be more thorough on valid TGA RGB and RGBA images.
|
|
In particular current TGA plug-in can import RGBA as 32 bits (8 bits per
|
|
channel) and 16 bits (5 bits per color channel and 1 bit for alpha), and
|
|
RGB as 15 and 24 bits.
|
|
Maybe there exist more variants, but if they do exist, we simply don't
|
|
support them yet.
|
|
|
|
Thanks to Hanno Böck for the report and a first patch attempt.
|
|
|
|
(cherry picked from commit 674b62ad45b6579ec6d7923dc3cb1ef4e8b5498b)
|
|
---
|
|
plug-ins/common/file-tga.c | 12 ++++++++----
|
|
1 file changed, 8 insertions(+), 4 deletions(-)
|
|
|
|
diff --git a/plug-ins/common/file-tga.c b/plug-ins/common/file-tga.c
|
|
index aef9870..426acc2 100644
|
|
--- a/plug-ins/common/file-tga.c
|
|
+++ b/plug-ins/common/file-tga.c
|
|
@@ -564,12 +564,16 @@ load_image (const gchar *filename,
|
|
}
|
|
break;
|
|
case TGA_TYPE_COLOR:
|
|
- if (info.bpp != 15 && info.bpp != 16 &&
|
|
- info.bpp != 24 && info.bpp != 32)
|
|
+ if ((info.bpp != 15 && info.bpp != 16 &&
|
|
+ info.bpp != 24 && info.bpp != 32) ||
|
|
+ ((info.bpp == 15 || info.bpp == 24) &&
|
|
+ info.alphaBits != 0) ||
|
|
+ (info.bpp == 16 && info.alphaBits != 1) ||
|
|
+ (info.bpp == 32 && info.alphaBits != 8))
|
|
{
|
|
- g_message ("Unhandled sub-format in '%s' (type = %u, bpp = %u)",
|
|
+ g_message ("Unhandled sub-format in '%s' (type = %u, bpp = %u, alpha = %u)",
|
|
gimp_filename_to_utf8 (filename),
|
|
- info.imageType, info.bpp);
|
|
+ info.imageType, info.bpp, info.alphaBits);
|
|
return -1;
|
|
}
|
|
break;
|
|
--
|
|
cgit v0.12
|
|
|