* libtiff security update (multiple CVEs)
@ 2016-08-23 19:44 Leo Famulari
2016-08-25 16:16 ` Leo Famulari
2016-08-25 16:29 ` David Craven
0 siblings, 2 replies; 4+ messages in thread
From: Leo Famulari @ 2016-08-23 19:44 UTC (permalink / raw)
To: guix-devel
[-- Attachment #1: Type: text/plain, Size: 1360 bytes --]
I took these patches from the libtiff CVS repo using the information
contained in the respective bug reports:
http://bugzilla.maptools.org/buglist.cgi?product=libtiff
This is my first time using CVS, so please review carefully.
I removed the hunks that looked like this, since most of them did not
apply:
@@ -1,4 +1,4 @@
-/* $Id: tiffcrop.c,v 1.36 2016-07-11 21:26:03 erouault Exp $ */
+/* $Id: tiffcrop.c,v 1.37 2016-07-11 21:38:31 erouault Exp $ */
/* tiffcrop.c -- a port of tiffcp.c extended to include manipulations of
* the image data through additional options listed below
I also had to add a directory level, so ...
diff -u -r1.36 -r1.37
--- tools/tiffcrop.c 11 Jul 2016 21:26:03 -0000 1.36
+++ tools/tiffcrop.c 11 Jul 2016 21:38:31 -0000 1.37
... became ...
diff -u -r1.36 -r1.37
--- libtiff/tools/tiffcrop.c 11 Jul 2016 21:26:03 -0000 1.36
+++ libtiff/tools/tiffcrop.c 11 Jul 2016 21:38:31 -0000 1.37
There are several CVEs in that cluster that libtiff did not provide a
patch for. Instead, they decided to remove the affected component
entirely in the upcoming release. For example
http://bugzilla.maptools.org/show_bug.cgi?id=2567#c1
We could try copying other distros' patches for these, although in some
cases the libtiff maintainer claims that the distro's patch is
incorrect:
http://bugzilla.maptools.org/show_bug.cgi?id=2563#c4
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From 27cf17edd6990ff388ca44d6319a9171e6ac6ff7 Mon Sep 17 00:00:00 2001
From: Leo Famulari <leo@famulari.name>
Date: Tue, 23 Aug 2016 15:34:16 -0400
Subject: [PATCH] gnu: libtiff: Fix CVE-2016-{3623,3945,3990,3991,5321,5323}.
* gnu/packages/image.scm (libtiff)[replacement]: New field.
(libtiff/fixed): New variable.
* gnu/packages/patches/libtiff-CVE-2016-3623.patch,
gnu/packages/patches/libtiff-CVE-2016-3945.patch,
gnu/packages/patches/libtiff-CVE-2016-3990.patch,
gnu/packages/patches/libtiff-CVE-2016-3991.patch,
gnu/packages/patches/libtiff-CVE-2016-5321.patch,
gnu/packages/patches/libtiff-CVE-2016-5323.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.
---
gnu/local.mk | 6 ++
gnu/packages/image.scm | 17 ++++
gnu/packages/patches/libtiff-CVE-2016-3623.patch | 30 ++++++
gnu/packages/patches/libtiff-CVE-2016-3945.patch | 94 +++++++++++++++++
gnu/packages/patches/libtiff-CVE-2016-3990.patch | 31 ++++++
gnu/packages/patches/libtiff-CVE-2016-3991.patch | 123 +++++++++++++++++++++++
gnu/packages/patches/libtiff-CVE-2016-5321.patch | 25 +++++
gnu/packages/patches/libtiff-CVE-2016-5323.patch | 88 ++++++++++++++++
8 files changed, 414 insertions(+)
create mode 100644 gnu/packages/patches/libtiff-CVE-2016-3623.patch
create mode 100644 gnu/packages/patches/libtiff-CVE-2016-3945.patch
create mode 100644 gnu/packages/patches/libtiff-CVE-2016-3990.patch
create mode 100644 gnu/packages/patches/libtiff-CVE-2016-3991.patch
create mode 100644 gnu/packages/patches/libtiff-CVE-2016-5321.patch
create mode 100644 gnu/packages/patches/libtiff-CVE-2016-5323.patch
diff --git a/gnu/local.mk b/gnu/local.mk
index b8c5378..1217600 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -626,6 +626,12 @@ dist_patch_DATA = \
%D%/packages/patches/libtar-CVE-2013-4420.patch \
%D%/packages/patches/libtheora-config-guess.patch \
%D%/packages/patches/libtiff-CVE-2015-8665+CVE-2015-8683.patch \
+ %D%/packages/patches/libtiff-CVE-2016-3623.patch \
+ %D%/packages/patches/libtiff-CVE-2016-3945.patch \
+ %D%/packages/patches/libtiff-CVE-2016-3990.patch \
+ %D%/packages/patches/libtiff-CVE-2016-3991.patch \
+ %D%/packages/patches/libtiff-CVE-2016-5321.patch \
+ %D%/packages/patches/libtiff-CVE-2016-5323.patch \
%D%/packages/patches/libtiff-oob-accesses-in-decode.patch \
%D%/packages/patches/libtiff-oob-write-in-nextdecode.patch \
%D%/packages/patches/libtool-skip-tests2.patch \
diff --git a/gnu/packages/image.scm b/gnu/packages/image.scm
index 7d72492..72a3204 100644
--- a/gnu/packages/image.scm
+++ b/gnu/packages/image.scm
@@ -150,6 +150,7 @@ maximum quality factor.")
(define-public libtiff
(package
(name "libtiff")
+ (replacement libtiff/fixed)
(version "4.0.6")
(source (origin
(method url-fetch)
@@ -182,6 +183,22 @@ collection of tools for doing simple manipulations of TIFF images.")
"See COPYRIGHT in the distribution."))
(home-page "http://www.remotesensing.org/libtiff/")))
+(define libtiff/fixed
+ (package
+ (inherit libtiff)
+ (source (origin
+ (inherit (package-source libtiff))
+ (patches (search-patches
+ "libtiff-oob-accesses-in-decode.patch"
+ "libtiff-oob-write-in-nextdecode.patch"
+ "libtiff-CVE-2015-8665+CVE-2015-8683.patch"
+ "libtiff-CVE-2016-3623.patch"
+ "libtiff-CVE-2016-3945.patch"
+ "libtiff-CVE-2016-3990.patch"
+ "libtiff-CVE-2016-3991.patch"
+ "libtiff-CVE-2016-5321.patch"
+ "libtiff-CVE-2016-5323.patch"))))))
+
(define-public libwmf
(package
(name "libwmf")
diff --git a/gnu/packages/patches/libtiff-CVE-2016-3623.patch b/gnu/packages/patches/libtiff-CVE-2016-3623.patch
new file mode 100644
index 0000000..0870586
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2016-3623.patch
@@ -0,0 +1,30 @@
+Fix CVE-2016-3623.
+
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3623
+http://bugzilla.maptools.org/show_bug.cgi?id=2569
+
+Patch extracted from upstream CVS repo with:
+$ cvs diff -u -r1.16 -r1.17 tools/rgb2ycbcr.c
+
+Index: tools/rgb2ycbcr.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/rgb2ycbcr.c,v
+retrieving revision 1.16
+retrieving revision 1.17
+diff -u -r1.16 -r1.17
+--- libtiff/tools/rgb2ycbcr.c 21 Jun 2015 01:09:10 -0000 1.16
++++ libtiff/tools/rgb2ycbcr.c 15 Aug 2016 21:26:56 -0000 1.17
+@@ -95,9 +95,13 @@
+ break;
+ case 'h':
+ horizSubSampling = atoi(optarg);
++ if( horizSubSampling != 1 && horizSubSampling != 2 && horizSubSampling != 4 )
++ usage(-1);
+ break;
+ case 'v':
+ vertSubSampling = atoi(optarg);
++ if( vertSubSampling != 1 && vertSubSampling != 2 && vertSubSampling != 4 )
++ usage(-1);
+ break;
+ case 'r':
+ rowsperstrip = atoi(optarg);
diff --git a/gnu/packages/patches/libtiff-CVE-2016-3945.patch b/gnu/packages/patches/libtiff-CVE-2016-3945.patch
new file mode 100644
index 0000000..8ec62ba
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2016-3945.patch
@@ -0,0 +1,94 @@
+Fix CVE-2016-3945 (integer overflow in size of allocated
+buffer, when -b mode is enabled, that could result in out-of-bounds
+write).
+
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3945
+http://bugzilla.maptools.org/show_bug.cgi?id=2545
+
+Patch extracted from upstream CVS repo with:
+$ cvs diff -u -r1.21 -r1.22 tools/tiff2rgba.c
+
+Index: tools/tiff2rgba.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiff2rgba.c,v
+retrieving revision 1.21
+retrieving revision 1.22
+diff -u -r1.21 -r1.22
+--- libtiff/tools/tiff2rgba.c 21 Jun 2015 01:09:10 -0000 1.21
++++ libtiff/tools/tiff2rgba.c 15 Aug 2016 20:06:41 -0000 1.22
+@@ -147,6 +147,7 @@
+ uint32 row, col;
+ uint32 *wrk_line;
+ int ok = 1;
++ uint32 rastersize, wrk_linesize;
+
+ TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &width);
+ TIFFGetField(in, TIFFTAG_IMAGELENGTH, &height);
+@@ -163,7 +164,13 @@
+ /*
+ * Allocate tile buffer
+ */
+- raster = (uint32*)_TIFFmalloc(tile_width * tile_height * sizeof (uint32));
++ rastersize = tile_width * tile_height * sizeof (uint32);
++ if (tile_width != (rastersize / tile_height) / sizeof( uint32))
++ {
++ TIFFError(TIFFFileName(in), "Integer overflow when calculating raster buffer");
++ exit(-1);
++ }
++ raster = (uint32*)_TIFFmalloc(rastersize);
+ if (raster == 0) {
+ TIFFError(TIFFFileName(in), "No space for raster buffer");
+ return (0);
+@@ -173,7 +180,13 @@
+ * Allocate a scanline buffer for swapping during the vertical
+ * mirroring pass.
+ */
+- wrk_line = (uint32*)_TIFFmalloc(tile_width * sizeof (uint32));
++ wrk_linesize = tile_width * sizeof (uint32);
++ if (tile_width != wrk_linesize / sizeof (uint32))
++ {
++ TIFFError(TIFFFileName(in), "Integer overflow when calculating wrk_line buffer");
++ exit(-1);
++ }
++ wrk_line = (uint32*)_TIFFmalloc(wrk_linesize);
+ if (!wrk_line) {
+ TIFFError(TIFFFileName(in), "No space for raster scanline buffer");
+ ok = 0;
+@@ -249,6 +262,7 @@
+ uint32 row;
+ uint32 *wrk_line;
+ int ok = 1;
++ uint32 rastersize, wrk_linesize;
+
+ TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &width);
+ TIFFGetField(in, TIFFTAG_IMAGELENGTH, &height);
+@@ -263,7 +277,13 @@
+ /*
+ * Allocate strip buffer
+ */
+- raster = (uint32*)_TIFFmalloc(width * rowsperstrip * sizeof (uint32));
++ rastersize = width * rowsperstrip * sizeof (uint32);
++ if (width != (rastersize / rowsperstrip) / sizeof( uint32))
++ {
++ TIFFError(TIFFFileName(in), "Integer overflow when calculating raster buffer");
++ exit(-1);
++ }
++ raster = (uint32*)_TIFFmalloc(rastersize);
+ if (raster == 0) {
+ TIFFError(TIFFFileName(in), "No space for raster buffer");
+ return (0);
+@@ -273,7 +293,13 @@
+ * Allocate a scanline buffer for swapping during the vertical
+ * mirroring pass.
+ */
+- wrk_line = (uint32*)_TIFFmalloc(width * sizeof (uint32));
++ wrk_linesize = width * sizeof (uint32);
++ if (width != wrk_linesize / sizeof (uint32))
++ {
++ TIFFError(TIFFFileName(in), "Integer overflow when calculating wrk_line buffer");
++ exit(-1);
++ }
++ wrk_line = (uint32*)_TIFFmalloc(wrk_linesize);
+ if (!wrk_line) {
+ TIFFError(TIFFFileName(in), "No space for raster scanline buffer");
+ ok = 0;
diff --git a/gnu/packages/patches/libtiff-CVE-2016-3990.patch b/gnu/packages/patches/libtiff-CVE-2016-3990.patch
new file mode 100644
index 0000000..7641c30
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2016-3990.patch
@@ -0,0 +1,31 @@
+Fix CVE-2016-3990 (write buffer overflow in PixarLogEncode if more input
+samples are provided than expected by PixarLogSetupEncode).
+
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3990
+http://bugzilla.maptools.org/show_bug.cgi?id=2544
+
+Patch extracted from upstream CVS repo with:
+$ cvs diff -u -r1.45 -r1.46 libtiff/tif_pixarlog.c
+
+Index: libtiff/tif_pixarlog.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_pixarlog.c,v
+retrieving revision 1.45
+retrieving revision 1.46
+diff -u -r1.45 -r1.46
+--- libtiff/libtiff/tif_pixarlog.c 28 Jun 2016 15:37:33 -0000 1.45
++++ libtiff/libtiff/tif_pixarlog.c 15 Aug 2016 20:49:48 -0000 1.46
+@@ -1141,6 +1141,13 @@
+ }
+
+ llen = sp->stride * td->td_imagewidth;
++ /* Check against the number of elements (of size uint16) of sp->tbuf */
++ if( n > td->td_rowsperstrip * llen )
++ {
++ TIFFErrorExt(tif->tif_clientdata, module,
++ "Too many input bytes provided");
++ return 0;
++ }
+
+ for (i = 0, up = sp->tbuf; i < n; i += llen, up += llen) {
+ switch (sp->user_datafmt) {
diff --git a/gnu/packages/patches/libtiff-CVE-2016-3991.patch b/gnu/packages/patches/libtiff-CVE-2016-3991.patch
new file mode 100644
index 0000000..cb05f00
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2016-3991.patch
@@ -0,0 +1,123 @@
+Fix CVE-2016-3991 (out-of-bounds write in loadImage()).
+
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3991
+http://bugzilla.maptools.org/show_bug.cgi?id=2543
+
+Patch extracted from upstream CVS repo with:
+$ cvs diff -u -r1.37 -r1.38 tools/tiffcrop.c
+
+Index: tools/tiffcrop.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiffcrop.c,v
+retrieving revision 1.37
+retrieving revision 1.38
+diff -u -r1.37 -r1.38
+--- libtiff/tools/tiffcrop.c 11 Jul 2016 21:38:31 -0000 1.37
++++ libtiff/tools/tiffcrop.c 15 Aug 2016 21:05:40 -0000 1.38
+@@ -798,6 +798,11 @@
+ }
+
+ tile_buffsize = tilesize;
++ if (tilesize == 0 || tile_rowsize == 0)
++ {
++ TIFFError("readContigTilesIntoBuffer", "Tile size or tile rowsize is zero");
++ exit(-1);
++ }
+
+ if (tilesize < (tsize_t)(tl * tile_rowsize))
+ {
+@@ -807,7 +812,12 @@
+ tilesize, tl * tile_rowsize);
+ #endif
+ tile_buffsize = tl * tile_rowsize;
+- }
++ if (tl != (tile_buffsize / tile_rowsize))
++ {
++ TIFFError("readContigTilesIntoBuffer", "Integer overflow when calculating buffer size.");
++ exit(-1);
++ }
++ }
+
+ tilebuf = _TIFFmalloc(tile_buffsize);
+ if (tilebuf == 0)
+@@ -1210,6 +1220,12 @@
+ !TIFFGetField(out, TIFFTAG_BITSPERSAMPLE, &bps) )
+ return 1;
+
++ if (tilesize == 0 || tile_rowsize == 0 || tl == 0 || tw == 0)
++ {
++ TIFFError("writeBufferToContigTiles", "Tile size, tile row size, tile width, or tile length is zero");
++ exit(-1);
++ }
++
+ tile_buffsize = tilesize;
+ if (tilesize < (tsize_t)(tl * tile_rowsize))
+ {
+@@ -1219,6 +1235,11 @@
+ tilesize, tl * tile_rowsize);
+ #endif
+ tile_buffsize = tl * tile_rowsize;
++ if (tl != tile_buffsize / tile_rowsize)
++ {
++ TIFFError("writeBufferToContigTiles", "Integer overflow when calculating buffer size");
++ exit(-1);
++ }
+ }
+
+ tilebuf = _TIFFmalloc(tile_buffsize);
+@@ -5945,12 +5966,27 @@
+ TIFFGetField(in, TIFFTAG_TILELENGTH, &tl);
+
+ tile_rowsize = TIFFTileRowSize(in);
++ if (ntiles == 0 || tlsize == 0 || tile_rowsize == 0)
++ {
++ TIFFError("loadImage", "File appears to be tiled, but the number of tiles, tile size, or tile rowsize is zero.");
++ exit(-1);
++ }
+ buffsize = tlsize * ntiles;
++ if (tlsize != (buffsize / ntiles))
++ {
++ TIFFError("loadImage", "Integer overflow when calculating buffer size");
++ exit(-1);
++ }
+
+-
+ if (buffsize < (uint32)(ntiles * tl * tile_rowsize))
+ {
+ buffsize = ntiles * tl * tile_rowsize;
++ if (ntiles != (buffsize / tl / tile_rowsize))
++ {
++ TIFFError("loadImage", "Integer overflow when calculating buffer size");
++ exit(-1);
++ }
++
+ #ifdef DEBUG2
+ TIFFError("loadImage",
+ "Tilesize %u is too small, using ntiles * tilelength * tilerowsize %lu",
+@@ -5969,8 +6005,25 @@
+ TIFFGetFieldDefaulted(in, TIFFTAG_ROWSPERSTRIP, &rowsperstrip);
+ stsize = TIFFStripSize(in);
+ nstrips = TIFFNumberOfStrips(in);
++ if (nstrips == 0 || stsize == 0)
++ {
++ TIFFError("loadImage", "File appears to be striped, but the number of stipes or stripe size is zero.");
++ exit(-1);
++ }
++
+ buffsize = stsize * nstrips;
+-
++ if (stsize != (buffsize / nstrips))
++ {
++ TIFFError("loadImage", "Integer overflow when calculating buffer size");
++ exit(-1);
++ }
++ uint32 buffsize_check;
++ buffsize_check = ((length * width * spp * bps) + 7);
++ if (length != ((buffsize_check - 7) / width / spp / bps))
++ {
++ TIFFError("loadImage", "Integer overflow detected.");
++ exit(-1);
++ }
+ if (buffsize < (uint32) (((length * width * spp * bps) + 7) / 8))
+ {
+ buffsize = ((length * width * spp * bps) + 7) / 8;
diff --git a/gnu/packages/patches/libtiff-CVE-2016-5321.patch b/gnu/packages/patches/libtiff-CVE-2016-5321.patch
new file mode 100644
index 0000000..2afca18
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2016-5321.patch
@@ -0,0 +1,25 @@
+Fix CVE-2016-5321.
+
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5321
+http://bugzilla.maptools.org/show_bug.cgi?id=2558
+
+Patch extracted from upstream CVS repo with:
+$ cvs diff -u -r1.35 -r1.36 tools/tiffcrop.c
+
+Index: tools/tiffcrop.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiffcrop.c,v
+retrieving revision 1.35
+retrieving revision 1.36
+diff -u -r1.35 -r1.36
+--- libtiff/tools/tiffcrop.c 19 Aug 2015 02:31:04 -0000 1.35
++++ libtiff/tools/tiffcrop.c 11 Jul 2016 21:26:03 -0000 1.36
+@@ -989,7 +989,7 @@
+ nrow = (row + tl > imagelength) ? imagelength - row : tl;
+ for (col = 0; col < imagewidth; col += tw)
+ {
+- for (s = 0; s < spp; s++)
++ for (s = 0; s < spp && s < MAX_SAMPLES; s++)
+ { /* Read each plane of a tile set into srcbuffs[s] */
+ tbytes = TIFFReadTile(in, srcbuffs[s], col, row, 0, s);
+ if (tbytes < 0 && !ignore)
diff --git a/gnu/packages/patches/libtiff-CVE-2016-5323.patch b/gnu/packages/patches/libtiff-CVE-2016-5323.patch
new file mode 100644
index 0000000..8b2a043
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2016-5323.patch
@@ -0,0 +1,88 @@
+Fix CVE-2016-5323.
+
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5323
+http://bugzilla.maptools.org/show_bug.cgi?id=2559
+
+Patch extracted from upstream CVS repo with:
+$ cvs diff -u -r1.36 -r1.37 tools/tiffcrop.c
+
+Index: tools/tiffcrop.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiffcrop.c,v
+retrieving revision 1.36
+retrieving revision 1.37
+diff -u -r1.36 -r1.37
+--- libtiff/tools/tiffcrop.c 11 Jul 2016 21:26:03 -0000 1.36
++++ libtiff/tools/tiffcrop.c 11 Jul 2016 21:38:31 -0000 1.37
+@@ -3738,7 +3738,7 @@
+
+ matchbits = maskbits << (8 - src_bit - bps);
+ /* load up next sample from each plane */
+- for (s = 0; s < spp; s++)
++ for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++)
+ {
+ src = in[s] + src_offset + src_byte;
+ buff1 = ((*src) & matchbits) << (src_bit);
+@@ -3837,7 +3837,7 @@
+ src_bit = bit_offset % 8;
+
+ matchbits = maskbits << (16 - src_bit - bps);
+- for (s = 0; s < spp; s++)
++ for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++)
+ {
+ src = in[s] + src_offset + src_byte;
+ if (little_endian)
+@@ -3947,7 +3947,7 @@
+ src_bit = bit_offset % 8;
+
+ matchbits = maskbits << (32 - src_bit - bps);
+- for (s = 0; s < spp; s++)
++ for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++)
+ {
+ src = in[s] + src_offset + src_byte;
+ if (little_endian)
+@@ -4073,7 +4073,7 @@
+ src_bit = bit_offset % 8;
+
+ matchbits = maskbits << (64 - src_bit - bps);
+- for (s = 0; s < spp; s++)
++ for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++)
+ {
+ src = in[s] + src_offset + src_byte;
+ if (little_endian)
+@@ -4263,7 +4263,7 @@
+
+ matchbits = maskbits << (8 - src_bit - bps);
+ /* load up next sample from each plane */
+- for (s = 0; s < spp; s++)
++ for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++)
+ {
+ src = in[s] + src_offset + src_byte;
+ buff1 = ((*src) & matchbits) << (src_bit);
+@@ -4362,7 +4362,7 @@
+ src_bit = bit_offset % 8;
+
+ matchbits = maskbits << (16 - src_bit - bps);
+- for (s = 0; s < spp; s++)
++ for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++)
+ {
+ src = in[s] + src_offset + src_byte;
+ if (little_endian)
+@@ -4471,7 +4471,7 @@
+ src_bit = bit_offset % 8;
+
+ matchbits = maskbits << (32 - src_bit - bps);
+- for (s = 0; s < spp; s++)
++ for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++)
+ {
+ src = in[s] + src_offset + src_byte;
+ if (little_endian)
+@@ -4597,7 +4597,7 @@
+ src_bit = bit_offset % 8;
+
+ matchbits = maskbits << (64 - src_bit - bps);
+- for (s = 0; s < spp; s++)
++ for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++)
+ {
+ src = in[s] + src_offset + src_byte;
+ if (little_endian)
--
2.9.3
^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2016-08-30 1:05 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-08-23 19:44 libtiff security update (multiple CVEs) Leo Famulari
2016-08-25 16:16 ` Leo Famulari
2016-08-25 16:29 ` David Craven
2016-08-30 1:05 ` Leo Famulari
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