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gnu: libtiff: Fix two integer overflows.

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* gnu/packages/patches/libtiff-tiffycbcrtorgb-integer-overflow.patch,
gnu/packages/patches/libtiff-tiffycbcrtorgbinit-integer-overflow.patch:
New files.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/image.scm (libtiff-4.0.8)[source]: Use them.
This commit is contained in:
Leo Famulari 2017-07-07 00:31:08 -04:00
parent 625e7cd654
commit 61adfb00b1
No known key found for this signature in database
GPG key ID: 2646FA30BACA7F08
4 changed files with 105 additions and 1 deletions
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2
gnu/local.mk
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@ -783,6 +783,8 @@ dist_patch_DATA = \
%D%/packages/patches/libtiff-null-dereference.patch \
%D%/packages/patches/libtiff-tiffcp-underflow.patch \
%D%/packages/patches/libtiff-tiffgetfield-bugs.patch \
%D%/packages/patches/libtiff-tiffycbcrtorgb-integer-overflow.patch \
%D%/packages/patches/libtiff-tiffycbcrtorgbinit-integer-overflow.patch \
%D%/packages/patches/libtirpc-CVE-2017-8779.patch \
%D%/packages/patches/libtorrent-rasterbar-boost-compat.patch \
%D%/packages/patches/libtool-skip-tests2.patch \

4
gnu/packages/image.scm
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@ -393,7 +393,9 @@ (define libtiff-4.0.8
version ".tar.gz"))
(patches (search-patches "libtiff-tiffgetfield-bugs.patch"
"libtiff-CVE-2016-10688.patch"
"libtiff-CVE-2017-9936.patch"))
"libtiff-CVE-2017-9936.patch"
"libtiff-tiffycbcrtorgb-integer-overflow.patch"
"libtiff-tiffycbcrtorgbinit-integer-overflow.patch"))
(sha256
(base32
"0419mh6kkhz5fkyl77gv0in8x4d2jpdpfs147y8mj86rrjlabmsr"))))))

57
gnu/packages/patches/libtiff-tiffycbcrtorgb-integer-overflow.patch Normal file
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@ -0,0 +1,57 @@
Fix an integer overflow TIFFYCbCrtoRGB():
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1844
3rd party Git reference:
https://github.com/vadz/libtiff/commit/02669064e927074819ce1ed39aba0fccaa167717
2017-05-29 Even Rouault <even.rouault at spatialys.com>
* libtiff/tif_color.c: TIFFYCbCrToRGBInit(): stricter clamping to avoid
int32 overflow in TIFFYCbCrtoRGB().
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1844
Credit to OSS Fuzz
/cvs/maptools/cvsroot/libtiff/ChangeLog,v <-- ChangeLog
new revision: 1.1241; previous revision: 1.1240
/cvs/maptools/cvsroot/libtiff/libtiff/tif_color.c,v <-- libtiff/tif_color.c
new revision: 1.24; previous revision: 1.23
Index: libtiff/libtiff/tif_color.c
===================================================================
RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_color.c,v
retrieving revision 1.23
retrieving revision 1.24
diff -u -r1.23 -r1.24
--- libtiff/libtiff/tif_color.c 13 May 2017 18:17:34 -0000 1.23
+++ libtiff/libtiff/tif_color.c 29 May 2017 10:12:54 -0000 1.24
@@ -1,4 +1,4 @@
-/* $Id: tif_color.c,v 1.23 2017-05-13 18:17:34 erouault Exp $ */
+/* $Id: tif_color.c,v 1.24 2017-05-29 10:12:54 erouault Exp $ */
/*
* Copyright (c) 1988-1997 Sam Leffler
@@ -275,10 +275,10 @@
for (i = 0, x = -128; i < 256; i++, x++) {
int32 Cr = (int32)CLAMPw(Code2V(x, refBlackWhite[4] - 128.0F,
refBlackWhite[5] - 128.0F, 127),
- -128.0F * 64, 128.0F * 64);
+ -128.0F * 32, 128.0F * 32);
int32 Cb = (int32)CLAMPw(Code2V(x, refBlackWhite[2] - 128.0F,
refBlackWhite[3] - 128.0F, 127),
- -128.0F * 64, 128.0F * 64);
+ -128.0F * 32, 128.0F * 32);
ycbcr->Cr_r_tab[i] = (int32)((D1*Cr + ONE_HALF)>>SHIFT);
ycbcr->Cb_b_tab[i] = (int32)((D3*Cb + ONE_HALF)>>SHIFT);
@@ -286,7 +286,7 @@
ycbcr->Cb_g_tab[i] = D4*Cb + ONE_HALF;
ycbcr->Y_tab[i] =
(int32)CLAMPw(Code2V(x + 128, refBlackWhite[0], refBlackWhite[1], 255),
- -128.0F * 64, 128.0F * 64);
+ -128.0F * 32, 128.0F * 32);
}
}

43
gnu/packages/patches/libtiff-tiffycbcrtorgbinit-integer-overflow.patch Normal file
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@ -0,0 +1,43 @@
Fix an integer overflow in initYCbCrConversion():
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1907
3rd party Git reference
https://github.com/vadz/libtiff/commit/468988860e0dae62ebbf991627c74bcbb4bd256f
* libtiff/tif_getimage.c: initYCbCrConversion(): stricter validation for
refBlackWhite coefficients values. To avoid invalid float->int32 conversion
(when refBlackWhite[0] == 2147483648.f)
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1907
Credit to OSS Fuzz
/cvs/maptools/cvsroot/libtiff/ChangeLog,v <-- ChangeLog
new revision: 1.1243; previous revision: 1.1242
/cvs/maptools/cvsroot/libtiff/libtiff/tif_getimage.c,v <-- libtiff/tif_getimage.c
new revision: 1.107; previous revision: 1.106
Index: libtiff/libtiff/tif_getimage.c
===================================================================
RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_getimage.c,v
retrieving revision 1.106
retrieving revision 1.107
diff -u -r1.106 -r1.107
--- libtiff/libtiff/tif_getimage.c 20 May 2017 11:29:02 -0000 1.106
+++ libtiff/libtiff/tif_getimage.c 29 May 2017 11:29:06 -0000 1.107
@@ -1,4 +1,4 @@
-/* $Id: tif_getimage.c,v 1.106 2017-05-20 11:29:02 erouault Exp $ */
+/* $Id: tif_getimage.c,v 1.107 2017-05-29 11:29:06 erouault Exp $ */
/*
* Copyright (c) 1991-1997 Sam Leffler
@@ -2241,7 +2241,7 @@
static int isInRefBlackWhiteRange(float f)
{
- return f >= (float)(-0x7FFFFFFF + 128) && f <= (float)0x7FFFFFFF;
+ return f > (float)(-0x7FFFFFFF + 128) && f < (float)0x7FFFFFFF;
}
static int