From 749193265ac99956f01a2dd9b20f124f2f7859d0 Mon Sep 17 00:00:00 2001
From: Shawn Walker-Salas <shawn.walker@oracle.com>
Date: Tue, 30 May 2017 19:07:52 -0700
Subject: [PATCH] Add additional input validation in an attempt to resolve
issue #232
---
IlmImf/ImfDwaCompressor.cpp | 7 +-
IlmImf/ImfHuf.cpp | 10 +-
IlmImf/ImfPizCompressor.cpp | 6 +
IlmImfTest/CMakeLists.txt | 1 +
IlmImfTest/Makefile.am | 2 +
IlmImfTest/comp_bad_bounds_piz.exr | Bin 0 -> 4785 bytes
IlmImfTest/comp_bad_neg_bounds_pxr24.exr | Bin 0 -> 3401 bytes
IlmImfTest/comp_bad_pos_bounds_piz.exr | Bin 0 -> 569 bytes
IlmImfTest/comp_bad_pos_bounds_pxr24.exr | Bin 0 -> 231 bytes
IlmImfTest/comp_early_eof_piz.exr | Bin 0 -> 740 bytes
IlmImfTest/comp_invalid_unknown.exr | Bin 0 -> 786 bytes
IlmImfTest/comp_short_decode_piz.exr | Bin 0 -> 3147 bytes
IlmImfTest/testMalformedImages.cpp | 153 +++++++++++++++++++++++
IlmImfTest/testMalformedImages.h | 37 ++++++
14 files changed, 211 insertions(+), 5 deletions(-)
create mode 100644 IlmImfTest/comp_bad_bounds_piz.exr
create mode 100644 IlmImfTest/comp_bad_neg_bounds_pxr24.exr
create mode 100644 IlmImfTest/comp_bad_pos_bounds_piz.exr
create mode 100644 IlmImfTest/comp_bad_pos_bounds_pxr24.exr
create mode 100644 IlmImfTest/comp_early_eof_piz.exr
create mode 100644 IlmImfTest/comp_invalid_unknown.exr
create mode 100644 IlmImfTest/comp_short_decode_piz.exr
create mode 100644 IlmImfTest/testMalformedImages.cpp
create mode 100644 IlmImfTest/testMalformedImages.h
diff --git a/IlmImf/ImfDwaCompressor.cpp b/IlmImf/ImfDwaCompressor.cpp
index 4985be62..804cf6ca 100644
--- a/IlmImf/ImfDwaCompressor.cpp
+++ b/IlmImf/ImfDwaCompressor.cpp
@@ -2386,7 +2386,12 @@ DwaCompressor::uncompress
const char *dataPtr = inPtr + NUM_SIZES_SINGLE * sizeof(Int64);
- if (inSize < headerSize + compressedSize)
+ /* Both the sum and individual sizes are checked in case of overflow. */
+ if (inSize < (headerSize + compressedSize) ||
+ inSize < unknownCompressedSize ||
+ inSize < acCompressedSize ||
+ inSize < dcCompressedSize ||
+ inSize < rleCompressedSize)
{
throw Iex::InputExc("Error uncompressing DWA data"
"(truncated file).");
diff --git a/IlmImf/ImfHuf.cpp b/IlmImf/ImfHuf.cpp
index a375d05d..97909a5b 100644
--- a/IlmImf/ImfHuf.cpp
+++ b/IlmImf/ImfHuf.cpp
@@ -822,7 +822,7 @@ hufEncode // return: output size (in bits)
}
-#define getCode(po, rlc, c, lc, in, out, oe) \
+#define getCode(po, rlc, c, lc, in, out, ob, oe)\
{ \
if (po == rlc) \
{ \
@@ -835,6 +835,8 @@ hufEncode // return: output size (in bits)
\
if (out + cs > oe) \
tooMuchData(); \
+ else if (out - 1 < ob) \
+ notEnoughData(); \
\
unsigned short s = out[-1]; \
\
@@ -895,7 +897,7 @@ hufDecode
//
lc -= pl.len;
- getCode (pl.lit, rlc, c, lc, in, out, oe);
+ getCode (pl.lit, rlc, c, lc, in, out, outb, oe);
}
else
{
@@ -925,7 +927,7 @@ hufDecode
//
lc -= l;
- getCode (pl.p[j], rlc, c, lc, in, out, oe);
+ getCode (pl.p[j], rlc, c, lc, in, out, outb, oe);
break;
}
}
@@ -952,7 +954,7 @@ hufDecode
if (pl.len)
{
lc -= pl.len;
- getCode (pl.lit, rlc, c, lc, in, out, oe);
+ getCode (pl.lit, rlc, c, lc, in, out, outb, oe);
}
else
{
diff --git a/IlmImf/ImfPizCompressor.cpp b/IlmImf/ImfPizCompressor.cpp
index 46c6fbac..8b3ee38c 100644
--- a/IlmImf/ImfPizCompressor.cpp
+++ b/IlmImf/ImfPizCompressor.cpp
@@ -573,6 +573,12 @@ PizCompressor::uncompress (const char *inPtr,
int length;
Xdr::read <CharPtrIO> (inPtr, length);
+ if (length > inSize)
+ {
+ throw InputExc ("Error in header for PIZ-compressed data "
+ "(invalid array length).");
+ }
+
hufUncompress (inPtr, length, _tmpBuffer, tmpBufferEnd - _tmpBuffer);
//
diff --git a/IlmImfTest/CMakeLists.txt b/IlmImfTest/CMakeLists.txt
index c07d9f22..42a1341b 100644
--- a/IlmImfTest/CMakeLists.txt
+++ b/IlmImfTest/CMakeLists.txt
@@ -32,6 +32,7 @@ ADD_EXECUTABLE ( IlmImfTest
testLineOrder.cpp
testLut.cpp
testMagic.cpp
+ testMalformedImages.cpp
testMultiPartApi.cpp
testMultiPartFileMixingBasic.cpp
testMultiPartSharedAttributes.cpp
diff --git a/IlmImfTest/Makefile.am b/IlmImfTest/Makefile.am
index 9ab5c4c4..f4324ba4 100644
--- a/IlmImfTest/Makefile.am
+++ b/IlmImfTest/Makefile.am
@@ -5,12 +5,14 @@ check_PROGRAMS = IlmImfTest
IlmImfTest_SOURCES = main.cpp tmpDir.h testAttributes.cpp testChannels.cpp \
testCompression.cpp testCopyPixels.cpp \
testCustomAttributes.cpp testHuf.cpp testLineOrder.cpp \
+ testMalformedImages.cpp \
testLut.cpp testRgba.cpp testRgbaThreading.cpp \
testSampleImages.cpp testSharedFrameBuffer.cpp \
testWav.cpp testXdr.cpp testAttributes.h testChannels.h \
testCompression.h testCopyPixels.h \
testCustomAttributes.h testHuf.h testLineOrder.h \
testLut.h testRgba.h testRgbaThreading.h \
+ testMalformedImages.h \
testSampleImages.h testWav.h testSharedFrameBuffer.h \
testXdr.h testConversion.cpp testConversion.h \
testNativeFormat.cpp testNativeFormat.h \
diff --git a/IlmImfTest/comp_bad_bounds_piz.exr b/IlmImfTest/comp_bad_bounds_piz.exr
new file mode 100644
index 0000000000000000000000000000000000000000..9add853498e25a99c6e7770a9ee82a4bba2c7807
GIT binary patch
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diff --git a/IlmImfTest/comp_bad_neg_bounds_pxr24.exr b/IlmImfTest/comp_bad_neg_bounds_pxr24.exr
new file mode 100644
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GIT binary patch
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diff --git a/IlmImfTest/comp_bad_pos_bounds_piz.exr b/IlmImfTest/comp_bad_pos_bounds_piz.exr
new file mode 100644
index 0000000000000000000000000000000000000000..5cedaa6a83104f2f1b4c806486dad748af19f25a
GIT binary patch
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HcmV?d00001
diff --git a/IlmImfTest/comp_bad_pos_bounds_pxr24.exr b/IlmImfTest/comp_bad_pos_bounds_pxr24.exr
new file mode 100644
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GIT binary patch
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diff --git a/IlmImfTest/comp_early_eof_piz.exr b/IlmImfTest/comp_early_eof_piz.exr
new file mode 100644
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diff --git a/IlmImfTest/comp_invalid_unknown.exr b/IlmImfTest/comp_invalid_unknown.exr
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diff --git a/IlmImfTest/comp_short_decode_piz.exr b/IlmImfTest/comp_short_decode_piz.exr
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diff --git a/IlmImfTest/testMalformedImages.cpp b/IlmImfTest/testMalformedImages.cpp
new file mode 100644
index 00000000..e472dfc0
--- /dev/null
+++ b/IlmImfTest/testMalformedImages.cpp
@@ -0,0 +1,153 @@
+///////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2002-2012, Industrial Light & Magic, a division of Lucas
+// Digital Ltd. LLC
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Industrial Light & Magic nor the names of
+// its contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+///////////////////////////////////////////////////////////////////////////
+
+#include <ImfAcesFile.h>
+#include <ImfArray.h>
+#include <ImfRgbaFile.h>
+#include <IlmThread.h>
+#include <stdio.h>
+#include <assert.h>
+
+#ifndef ILM_IMF_TEST_IMAGEDIR
+ #define ILM_IMF_TEST_IMAGEDIR
+#endif
+
+
+using namespace OPENEXR_IMF_NAMESPACE;
+using namespace std;
+using namespace IMATH_NAMESPACE;
+
+
+namespace {
+
+void
+readImage (const char inFileName[])
+{
+ Array2D<Rgba> p;
+ Header h;
+ RgbaChannels ch;
+ Box2i dw;
+ int width;
+ int height;
+
+ {
+ cout << "Reading file " << inFileName << endl;
+
+ AcesInputFile in (inFileName);
+
+ h = in.header();
+ ch = in.channels();
+ dw = h.dataWindow();
+
+ width = dw.max.x - dw.min.x + 1;
+ height = dw.max.y - dw.min.y + 1;
+ p.resizeErase (height, width);
+
+ in.setFrameBuffer (&p[0][0] - dw.min.x - dw.min.y * width, 1, width);
+ in.readPixels (dw.min.y, dw.max.y);
+ }
+}
+
+void
+readBadBoundsImage (const char fileName[])
+{
+ cout << "file " << fileName << " " << flush;
+
+ OPENEXR_IMF_NAMESPACE::RgbaInputFile in (fileName);
+
+ cout << "version " << in.version() << " " << flush;
+
+ const Box2i &dw = in.dataWindow();
+}
+
+} // namespace
+
+void
+testMalformedImages (const std::string&)
+{
+ try
+ {
+ // id:000012,sig:11,src:000328+001154,op:splice,rep:16
+ readImage (ILM_IMF_TEST_IMAGEDIR "comp_short_decode_piz.exr");
+ cerr << "Malformed Images : InputFile : incorrect input file passed\n";
+ assert (false);
+ }
+ catch (const IEX_NAMESPACE::BaseExc &e)
+ {
+ // expected behaviour
+ }
+
+ try
+ {
+ // id:000077,sig:11,src:002575,op:havoc,rep:4
+ readImage (ILM_IMF_TEST_IMAGEDIR "comp_invalid_unknown.exr");
+ cerr << "Malformed Images : InputFile : incorrect input file passed\n";
+ assert (false);
+ }
+ catch (const IEX_NAMESPACE::IoExc &e)
+ {
+ // expected behaviour
+ }
+
+ try
+ {
+ // id:000103,sig:11,src:002037+004745,op:splice,rep:2
+ readImage (ILM_IMF_TEST_IMAGEDIR "comp_early_eof_piz.exr");
+ cerr << "Malformed Images : InputFile : incorrect input file passed\n";
+ assert (false);
+ }
+ catch (const IEX_NAMESPACE::InputExc &e)
+ {
+ // expected behaviour
+ }
+
+ // The files below expose a bug in the test code (readImage which uses the
+ // logic taken from exr2aces) that calculates an invalid pointer for the
+ // framebuffer. The dataWindow and displayWindow values used in these files
+ // seem valid based on a cursory reading of the OpenEXR specification. As
+ // such, the best we can do is ensure that parsing the basic header
+ // information doesn't cause any unexpected exceptions.
+
+ // id:000087,sig:11,src:000562+000300,op:splice,rep:2
+ readBadBoundsImage (ILM_IMF_TEST_IMAGEDIR "comp_bad_pos_bounds_piz.exr");
+
+ // id:000104,sig:11,src:001329+000334,op:splice,rep:2
+ readBadBoundsImage (ILM_IMF_TEST_IMAGEDIR "comp_bad_pos_bounds_pxr24.exr");
+
+ // id:000131,sig:11,src:000514+002831,op:splice,rep:16
+ readBadBoundsImage (ILM_IMF_TEST_IMAGEDIR "comp_bad_neg_bounds_pxr24.exr");
+
+ // id:000132,sig:11,src:000895,op:havoc,rep:32
+ readBadBoundsImage (ILM_IMF_TEST_IMAGEDIR "comp_bad_bounds_piz.exr");
+}
diff --git a/IlmImfTest/testMalformedImages.h b/IlmImfTest/testMalformedImages.h
new file mode 100644
index 00000000..43d52084
--- /dev/null
+++ b/IlmImfTest/testMalformedImages.h
@@ -0,0 +1,37 @@
+///////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2002-2012, Industrial Light & Magic, a division of Lucas
+// Digital Ltd. LLC
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Industrial Light & Magic nor the names of
+// its contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+///////////////////////////////////////////////////////////////////////////
+
+#include <string>
+
+void testMalformedImages (const std::string &tempDir);
distrib
>
Mageia
>
6
>
armv7hl
>
media
>
core-updates-src
>
by-pkgid
>
48fced5ef0abf43af7e530559d87f3c7
>
files
>
3
