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Re: Security bugs in freeimage bundled libraries [was Re: 01/02: gnu: fr
From: |
Efraim Flashner |
Subject: |
Re: Security bugs in freeimage bundled libraries [was Re: 01/02: gnu: freeimage: Fix CVE-2016-5684.] |
Date: |
Sat, 15 Oct 2016 21:03:35 +0300 |
User-agent: |
Mutt/1.7.0 (2016-08-17) |
On Fri, Oct 14, 2016 at 08:09:08PM -0400, Kei Kebreau wrote:
> Leo Famulari <address@hidden> writes:
>
> > On Fri, Oct 14, 2016 at 10:44:05AM +0000, Efraim Flashner wrote:
> >> efraim pushed a commit to branch master
> >> in repository guix.
> >>
> >> commit 76e8566c1b3c4876d649e712a5c8c473fd48d134
> >> Author: Efraim Flashner <address@hidden>
> >> Date: Fri Oct 14 11:28:21 2016 +0300
> >>
> >> gnu: freeimage: Fix CVE-2016-5684.
> >>
> >> * gnu/packages/image.scm (freeimage)[source]: Add patch.
> >> * gnu/packages/patches/freeimage-CVE-2016-5684.patch: New file.
> >> * gnu/local.mk (dist_patch_DATA): Register it.
> >> ---
> >> gnu/local.mk | 1 +
> >> gnu/packages/image.scm | 3 +-
> >> gnu/packages/patches/freeimage-CVE-2016-5684.patch | 34
> >> ++++++++++++++++++++
> >> 3 files changed, 37 insertions(+), 1 deletion(-)
> >
> > Efraim pointed out on IRC that our freeimage packages bundles many
> > 3rd-party libraries:
> >
> > $ ls -1 FreeImage/Source
> > CacheFile.h
> > DeprecationManager
> > FreeImage
> > FreeImage.h
> > FreeImageIO.h
> > FreeImageLib
> > FreeImageToolkit
> > LibJPEG
> > LibJXR
> > LibOpenJPEG
> > LibPNG
> > LibRawLite
> > LibTIFF4
> > LibWebP
> > MapIntrospector.h
> > Metadata
> > OpenEXR
> > Plugin.h
> > Quantizers.h
> > ToneMapping.h
> > Utilities.h
> > ZLib
> >
> > Debian has a patch to make it use "system" copies of the libraries:
> >
> > https://anonscm.debian.org/cgit/debian-science/packages/freeimage.git/tree/debian/patches/Disable-vendored-dependencies.patch?h=debian/sid
> >
> > For now, our freeimage package is probably vulnerable to many publicly
> > disclosed security bugs.
> >
> > Who volunteers to try fixing this?
>
> The patch is attached. I've removed the bit from Debian that disables JPEG
> transformation functions, as seen below. JPEGTransform.cpp (in
> Source/FreeImageToolkit) gave me some trouble when I left that part of
> the patch alone.
>
> @@ -473,6 +477,9 @@ FI_ENUM(FREE_IMAGE_DITHER) {
> FID_BAYER16x16 = 6 //! Bayer ordered dispersed dot
> dithering (order 4 dithering matrix)
> };
>
> +/* Debian: The JPEGTransform functions are deliberately disabled in our build
> + of FreeImage, since they require usage of the vendored copy of libjpeg. */
> +#if 0
> /** Lossless JPEG transformations
> Constants used in FreeImage_JPEGTransform
> */
> @@ -486,6 +493,7 @@ FI_ENUM(FREE_IMAGE_JPEG_OPERATION) {
> FIJPEG_OP_ROTATE_180 = 6, //! 180-degree rotation
> FIJPEG_OP_ROTATE_270 = 7 //! 270-degree clockwise (or 90
> ccw)
> };
> +#endif
>
> /** Tone mapping operators.
> Constants used in FreeImage_ToneMapping.
> @@ -1076,7 +1084,9 @@ DLL_API const char* DLL_CALLCONV
> FreeImage_TagToString(FREE_IMAGE_MDMODEL model,
> // --------------------------------------------------------------------------
> // JPEG lossless transformation routines
> // --------------------------------------------------------------------------
> -
> +/* Debian: The JPEGTransform functions are deliberately disabled in our build
> + of FreeImage, since they require usage of the vendored copy of libjpeg. */
> +#if 0
> DLL_API BOOL DLL_CALLCONV FreeImage_JPEGTransform(const char *src_file,
> const char *dst_file, FREE_IMAGE_JPEG_OPERATION operation, BOOL perfect
> FI_DEFAULT(TRUE));
> DLL_API BOOL DLL_CALLCONV FreeImage_JPEGTransformU(const wchar_t *src_file,
> const wchar_t *dst_file, FREE_IMAGE_JPEG_OPERATION operation, BOOL perfect
> FI_DEFAULT(TRUE));
> DLL_API BOOL DLL_CALLCONV FreeImage_JPEGCrop(const char *src_file, const
> char *dst_file, int left, int top, int right, int bottom);
> @@ -1085,6 +1095,7 @@ DLL_API BOOL DLL_CALLCONV
> FreeImage_JPEGTransformFromHandle(FreeImageIO* src_io,
> DLL_API BOOL DLL_CALLCONV FreeImage_JPEGTransformCombined(const char
> *src_file, const char *dst_file, FREE_IMAGE_JPEG_OPERATION operation, int*
> left, int* top, int* right, int* bottom, BOOL perfect FI_DEFAULT(TRUE));
> DLL_API BOOL DLL_CALLCONV FreeImage_JPEGTransformCombinedU(const wchar_t
> *src_file, const wchar_t *dst_file, FREE_IMAGE_JPEG_OPERATION operation, int*
> left, int* top, int* right, int* bottom, BOOL perfect FI_DEFAULT(TRUE));
> DLL_API BOOL DLL_CALLCONV
> FreeImage_JPEGTransformCombinedFromMemory(FIMEMORY* src_stream, FIMEMORY*
> dst_stream, FREE_IMAGE_JPEG_OPERATION operation, int* left, int* top, int*
> right, int* bottom, BOOL perfect FI_DEFAULT(TRUE));
> +#endif
> From 4ef0c85c769aa4bc7a528c13eee1c61705e61479 Mon Sep 17 00:00:00 2001
> From: Kei Kebreau <address@hidden>
> Date: Fri, 14 Oct 2016 18:09:45 -0400
> Subject: [PATCH] gnu: freeimage: Disable in-tree third-party libraries.
>
> * gnu/packages/image.scm (freeimage)[source]: Add patch.
> * gnu/packages/patches/freeimage-disable-vendored-dependencies.patch: New
> file.
> * gnu/local.mk (dist_patch_DATA): Register it.
> ---
> gnu/local.mk | 1 +
> gnu/packages/image.scm | 6 +-
> .../freeimage-disable-vendored-dependencies.patch | 398
> +++++++++++++++++++++
> 3 files changed, 404 insertions(+), 1 deletion(-)
> create mode 100644
> gnu/packages/patches/freeimage-disable-vendored-dependencies.patch
I was looking at it and I thought it was going to be much more than 400
lines in the end.
Did we also need the other patch?
https://sources.debian.net/src/freeimage/3.17.0%2Bds1-3/debian/patches/Use-system-dependencies.patch/
On one hand we could carry a modified version of Debian's patch, on the
other hand some of these look like they could be a series of substitute*
commands. I started looking through the patch and thinking how to
convert them from "../path/to/header.h" to <header.h> and realizing I
myself wouldn't want to do that, so that could easily be an option for
another time :).
--
Efraim Flashner <address@hidden> אפרים פלשנר
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