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1b03beb80a
CVE-2016-5321 libtiff: a maliciously crafted TIFF file could cause the
application to crash when using tiffcrop command
External References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-5321
http://bugzilla.maptools.org/show_bug.cgi?id=2558
Patch from:
d9783e4a14
(From OE-Core rev: 4a167cfb6ad79bbe2a2ff7f7b43c4a162ca42a4d)
Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
50 lines
1.7 KiB
Diff
50 lines
1.7 KiB
Diff
From d9783e4a1476b6787a51c5ae9e9b3156527589f0 Mon Sep 17 00:00:00 2001
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From: erouault <erouault>
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Date: Mon, 11 Jul 2016 21:26:03 +0000
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Subject: [PATCH 1/2] * tools/tiffcrop.c: Avoid access outside of stack
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allocated array on a tiled separate TIFF with more than 8 samples per pixel.
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Reported by Kaixiang Zhang of the Cloud Security Team, Qihoo 360
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(CVE-2016-5321, bugzilla #2558)
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CVE: CVE-2016-5321
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Upstream-Status: Backport
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https://github.com/vadz/libtiff/commit/d9783e4a1476b6787a51c5ae9e9b3156527589f0
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Signed-off-by: Yi Zhao <yi.zhao@windirver.com>
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---
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ChangeLog | 7 +++++++
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tools/tiffcrop.c | 2 +-
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2 files changed, 8 insertions(+), 1 deletion(-)
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diff --git a/ChangeLog b/ChangeLog
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index e98d54d..4e0302f 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,3 +1,10 @@
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+2016-07-11 Even Rouault <even.rouault at spatialys.com>
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+
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+ * tools/tiffcrop.c: Avoid access outside of stack allocated array
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+ on a tiled separate TIFF with more than 8 samples per pixel.
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+ Reported by Kaixiang Zhang of the Cloud Security Team, Qihoo 360
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+ (CVE-2016-5321, bugzilla #2558)
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+
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2015-12-27 Even Rouault <even.rouault at spatialys.com>
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* libtiff/tif_next.c: fix potential out-of-bound write in NeXTDecode()
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diff --git a/tools/tiffcrop.c b/tools/tiffcrop.c
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index d959ae3..6fc8fc1 100644
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--- a/tools/tiffcrop.c
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+++ b/tools/tiffcrop.c
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@@ -989,7 +989,7 @@ static int readSeparateTilesIntoBuffer (TIFF* in, uint8 *obuf,
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nrow = (row + tl > imagelength) ? imagelength - row : tl;
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for (col = 0; col < imagewidth; col += tw)
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{
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- for (s = 0; s < spp; s++)
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+ for (s = 0; s < spp && s < MAX_SAMPLES; s++)
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{ /* Read each plane of a tile set into srcbuffs[s] */
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tbytes = TIFFReadTile(in, srcbuffs[s], col, row, 0, s);
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if (tbytes < 0 && !ignore)
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--
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2.7.4
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