Project: imagemagick (imagemagick/imagemagick), language: c++
Vulnerability instance: imagemagick.cve-2017-14533
Sanitizer: address

================= Bug Report (1/1) ==================
## Source: GitHub Issue
## URL: https://github.com/ImageMagick/ImageMagick/issues/648
## Description:
Issue: ImageMagick/ImageMagick#648
Title: memory leak in ReadMATImage
State: closed
Created by: jgj212
Created at: 2017-08-05 14:49:37+00:00
Labels: bug

Issue Body:
Version: ImageMagick 7.0.6-6 Q16 x86_64

A memory leak vulnerability was found in function ReadMATImage ,which allow attackers to cause a denial of service  via a crafted file.

```
#./identify $FILE

==10190==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 13024 byte(s) in 1 object(s) allocated from:
    #0 0x4deec6 in __interceptor_malloc asan_malloc_linux.cc:66
    #1 0x7f87c406b566 in AcquireMagickMemory memory.c:464:10
    #2 0x7f87c401bba3 in AcquireImageInfo image.c:347:28
    #3 0x7f87c4024d13 in CloneImageInfo image.c:952:14
    #4 0x7f87c445227a in ReadMATImage mat.c:958:16
    #5 0x7f87c3e45a68 in ReadImage constitute.c:497:13
    #6 0x7f87c41def59 in ReadStream stream.c:1045:9
    #7 0x7f87c3e4460f in PingImage constitute.c:226:9
    #8 0x7f87c3e44db3 in PingImages constitute.c:327:10
    #9 0x7f87c357f596 in IdentifyImageCommand identify.c:319:18
    #10 0x7f87c363d2af in MagickCommandGenesis mogrify.c:183:14
    #11 0x514a47 in MagickMain magick.c:149:10
    #12 0x5144a1 in main magick.c:180:10
    #13 0x7f87bd586f44 in __libc_start_main (libc.so.6+0x21f44)

Indirect leak of 9096 byte(s) in 1 object(s) allocated from:
    #0 0x4deec6 in __interceptor_malloc asan_malloc_linux.cc:66
    #1 0x7f87c406b566 in AcquireMagickMemory memory.c:464:10
    #2 0x7f87c406b5c8 in AcquireQuantumMemory memory.c:537:10
    #3 0x7f87c3dc7164 in AcquirePixelCache cache.c:195:28
    #4 0x7f87c41debec in ReadStream stream.c:1027:20
    #5 0x7f87c3e4460f in PingImage constitute.c:226:9
    #6 0x7f87c3e44db3 in PingImages constitute.c:327:10
    #7 0x7f87c357f596 in IdentifyImageCommand identify.c:319:18
    #8 0x7f87c363d2af in MagickCommandGenesis mogrify.c:183:14
    #9 0x514a47 in MagickMain magick.c:149:10
    #10 0x5144a1 in main magick.c:180:10
    #11 0x7f87bd586f44 in __libc_start_main (libc.so.6+0x21f44)

Indirect leak of 88 byte(s) in 1 object(s) allocated from:
    #0 0x4deec6 in __interceptor_malloc asan_malloc_linux.cc:66
    #1 0x7f87c406b566 in AcquireMagickMemory memory.c:464:10
    #2 0x7f87c406b5c8 in AcquireQuantumMemory memory.c:537:10
    #3 0x7f87c3dc7c24 in AcquirePixelCacheNexus cache.c:268:31
    #4 0x7f87c3dc7684 in AcquirePixelCache cache.c:211:26
    #5 0x7f87c41debec in ReadStream stream.c:1027:20
    #6 0x7f87c3e4460f in PingImage constitute.c:226:9
    #7 0x7f87c3e44db3 in PingImages constitute.c:327:10
    #8 0x7f87c357f596 in IdentifyImageCommand identify.c:319:18
    #9 0x7f87c363d2af in MagickCommandGenesis mogrify.c:183:14
    #10 0x514a47 in MagickMain magick.c:149:10
    #11 0x5144a1 in main magick.c:180:10
    #12 0x7f87bd586f44 in __libc_start_main (libc.so.6+0x21f44)

Indirect leak of 88 byte(s) in 1 object(s) allocated from:
    #0 0x4deec6 in __interceptor_malloc asan_malloc_linux.cc:66
    #1 0x7f87c406b566 in AcquireMagickMemory memory.c:464:10
    #2 0x7f87c41beee5 in NewSplayTree splay-tree.c:1106:32
    #3 0x7f87c41beb14 in CloneSplayTree splay-tree.c:359:14
    #4 0x7f87c409bff5 in CloneImageOptions option.c:1880:27
    #5 0x7f87c40265c4 in CloneImageInfo image.c:1007:10
    #6 0x7f87c445227a in ReadMATImage mat.c:958:16
    #7 0x7f87c3e45a68 in ReadImage constitute.c:497:13
    #8 0x7f87c41def59 in ReadStream stream.c:1045:9
    #9 0x7f87c3e4460f in PingImage constitute.c:226:9
    #10 0x7f87c3e44db3 in PingImages constitute.c:327:10
    #11 0x7f87c357f596 in IdentifyImageCommand identify.c:319:18
    #12 0x7f87c363d2af in MagickCommandGenesis mogrify.c:183:14
    #13 0x514a47 in MagickMain magick.c:149:10
    #14 0x5144a1 in main magick.c:180:10
    #15 0x7f87bd586f44 in __libc_start_main (libc.so.6+0x21f44)

Indirect leak of 64 byte(s) in 1 object(s) allocated from:
    #0 0x4dfa25 in posix_memalign asan_malloc_linux.cc:142
    #1 0x7f87c406b3a2 in AcquireAlignedMemory memory.c:262:7
    #2 0x7f87c3dc7b2e in AcquirePixelCacheNexus cache.c:264:29
    #3 0x7f87c3dc7684 in AcquirePixelCache cache.c:211:26
    #4 0x7f87c41debec in ReadStream stream.c:1027:20
    #5 0x7f87c3e4460f in PingImage constitute.c:226:9
    #6 0x7f87c3e44db3 in PingImages constitute.c:327:10
    #7 0x7f87c357f596 in IdentifyImageCommand identify.c:319:18
    #8 0x7f87c363d2af in MagickCommandGenesis mogrify.c:183:14
    #9 0x514a47 in MagickMain magick.c:149:10
    #10 0x5144a1 in main magick.c:180:10
    #11 0x7f87bd586f44 in __libc_start_main (libc.so.6+0x21f44)

Indirect leak of 64 byte(s) in 1 object(s) allocated from:
    #0 0x4dfa25 in posix_memalign asan_malloc_linux.cc:142
    #1 0x7f87c41a91c8 in AcquireSemaphoreMemory semaphore.c:154:7
    #2 0x7f87c41a8a3c in AcquireSemaphoreInfo semaphore.c:200:36
    #3 0x7f87c3dc7943 in AcquirePixelCache cache.c:226:25
    #4 0x7f87c41debec in ReadStream stream.c:1027:20
    #5 0x7f87c3e4460f in PingImage constitute.c:226:9
    #6 0x7f87c3e44db3 in PingImages constitute.c:327:10
    #7 0x7f87c357f596 in IdentifyImageCommand identify.c:319:18
    #8 0x7f87c363d2af in MagickCommandGenesis mogrify.c:183:14
    #9 0x514a47 in MagickMain magick.c:149:10
    #10 0x5144a1 in main magick.c:180:10
    #11 0x7f87bd586f44 in __libc_start_main (libc.so.6+0x21f44)

Indirect leak of 64 byte(s) in 1 object(s) allocated from:
    #0 0x4dfa25 in posix_memalign asan_malloc_linux.cc:142
    #1 0x7f87c41a91c8 in AcquireSemaphoreMemory semaphore.c:154:7
    #2 0x7f87c41a8a3c in AcquireSemaphoreInfo semaphore.c:200:36
    #3 0x7f87c41bf266 in NewSplayTree splay-tree.c:1119:25
    #4 0x7f87c41beb14 in CloneSplayTree splay-tree.c:359:14
    #5 0x7f87c409bff5 in CloneImageOptions option.c:1880:27
    #6 0x7f87c40265c4 in CloneImageInfo image.c:1007:10
    #7 0x7f87c445227a in ReadMATImage mat.c:958:16
    #8 0x7f87c3e45a68 in ReadImage constitute.c:497:13
    #9 0x7f87c41def59 in ReadStream stream.c:1045:9
    #10 0x7f87c3e4460f in PingImage constitute.c:226:9
    #11 0x7f87c3e44db3 in PingImages constitute.c:327:10
    #12 0x7f87c357f596 in IdentifyImageCommand identify.c:319:18
    #13 0x7f87c363d2af in MagickCommandGenesis mogrify.c:183:14
    #14 0x514a47 in MagickMain magick.c:149:10
    #15 0x5144a1 in main magick.c:180:10
    #16 0x7f87bd586f44 in __libc_start_main (libc.so.6+0x21f44)

Indirect leak of 64 byte(s) in 1 object(s) allocated from:
    #0 0x4dfa25 in posix_memalign asan_malloc_linux.cc:142
    #1 0x7f87c41a91c8 in AcquireSemaphoreMemory semaphore.c:154:7
    #2 0x7f87c41a8a3c in AcquireSemaphoreInfo semaphore.c:200:36
    #3 0x7f87c3dc79d2 in AcquirePixelCache cache.c:228:30
    #4 0x7f87c41debec in ReadStream stream.c:1027:20
    #5 0x7f87c3e4460f in PingImage constitute.c:226:9
    #6 0x7f87c3e44db3 in PingImages constitute.c:327:10
    #7 0x7f87c357f596 in IdentifyImageCommand identify.c:319:18
    #8 0x7f87c363d2af in MagickCommandGenesis mogrify.c:183:14
    #9 0x514a47 in MagickMain magick.c:149:10
    #10 0x5144a1 in main magick.c:180:10
    #11 0x7f87bd586f44 in __libc_start_main (libc.so.6+0x21f44)

Indirect leak of 32 byte(s) in 1 object(s) allocated from:
    #0 0x4deec6 in __interceptor_malloc asan_malloc_linux.cc:66
    #1 0x7f87c406b566 in AcquireMagickMemory memory.c:464:10
    #2 0x7f87c41bde70 in AddValueToSplayTree splay-tree.c:188:21
    #3 0x7f87c41bed1c in CloneSplayTree splay-tree.c:371:12
    #4 0x7f87c409bff5 in CloneImageOptions option.c:1880:27
    #5 0x7f87c40265c4 in CloneImageInfo image.c:1007:10
    #6 0x7f87c445227a in ReadMATImage mat.c:958:16
    #7 0x7f87c3e45a68 in ReadImage constitute.c:497:13
    #8 0x7f87c41def59 in ReadStream stream.c:1045:9
    #9 0x7f87c3e4460f in PingImage constitute.c:226:9
    #10 0x7f87c3e44db3 in PingImages constitute.c:327:10
    #11 0x7f87c357f596 in IdentifyImageCommand identify.c:319:18
    #12 0x7f87c363d2af in MagickCommandGenesis mogrify.c:183:14
    #13 0x514a47 in MagickMain magick.c:149:10
    #14 0x5144a1 in main magick.c:180:10
    #15 0x7f87bd586f44 in __libc_start_main (libc.so.6+0x21f44)

Indirect leak of 19 byte(s) in 1 object(s) allocated from:
    #0 0x4deec6 in __interceptor_malloc asan_malloc_linux.cc:66
    #1 0x7f87c406b566 in AcquireMagickMemory memory.c:464:10
    #2 0x7f87c406b5c8 in AcquireQuantumMemory memory.c:537:10
    #3 0x7f87c41f4653 in ConstantString string.c:701:26
    #4 0x7f87c41bed06 in CloneSplayTree splay-tree.c:372:7
    #5 0x7f87c409bff5 in CloneImageOptions option.c:1880:27
    #6 0x7f87c40265c4 in CloneImageInfo image.c:1007:10
    #7 0x7f87c445227a in ReadMATImage mat.c:958:16
    #8 0x7f87c3e45a68 in ReadImage constitute.c:497:13
    #9 0x7f87c41def59 in ReadStream stream.c:1045:9
    #10 0x7f87c3e4460f in PingImage constitute.c:226:9
    #11 0x7f87c3e44db3 in PingImages constitute.c:327:10
    #12 0x7f87c357f596 in IdentifyImageCommand identify.c:319:18
    #13 0x7f87c363d2af in MagickCommandGenesis mogrify.c:183:14
    #14 0x514a47 in MagickMain magick.c:149:10
    #15 0x5144a1 in main magick.c:180:10
    #16 0x7f87bd586f44 in __libc_start_main (libc.so.6+0x21f44)

Indirect leak of 9 byte(s) in 1 object(s) allocated from:
    #0 0x4deec6 in __interceptor_malloc asan_malloc_linux.cc:66
    #1 0x7f87c406b566 in AcquireMagickMemory memory.c:464:10
    #2 0x7f87c406b5c8 in AcquireQuantumMemory memory.c:537:10
    #3 0x7f87c41f4653 in ConstantString string.c:701:26
    #4 0x7f87c41bec81 in CloneSplayTree splay-tree.c:371:43
    #5 0x7f87c409bff5 in CloneImageOptions option.c:1880:27
    #6 0x7f87c40265c4 in CloneImageInfo image.c:1007:10
    #7 0x7f87c445227a in ReadMATImage mat.c:958:16
    #8 0x7f87c3e45a68 in ReadImage constitute.c:497:13
    #9 0x7f87c41def59 in ReadStream stream.c:1045:9
    #10 0x7f87c3e4460f in PingImage constitute.c:226:9
    #11 0x7f87c3e44db3 in PingImages constitute.c:327:10
    #12 0x7f87c357f596 in IdentifyImageCommand identify.c:319:18
    #13 0x7f87c363d2af in MagickCommandGenesis mogrify.c:183:14
    #14 0x514a47 in MagickMain magick.c:149:10
    #15 0x5144a1 in main magick.c:180:10
    #16 0x7f87bd586f44 in __libc_start_main (libc.so.6+0x21f44)

SUMMARY: AddressSanitizer: 22612 byte(s) leaked in 11 allocation(s).

```

testcase: https://github.com/jgj212/poc/blob/master/leak-ReadMATImage3
Credit:ADLab of Venustech


Comments:
Comment by mikayla-grace on 2017-08-07 19:41:37+00:00:
Thanks for the problem report.  We can reproduce it and will have a patch to fix it in GIT master branch @ https://github.com/ImageMagick/ImageMagick later today.  The patch will be available in the beta releases of ImageMagick @ http://www.imagemagick.org/download/beta/ by sometime tomorrow. 


---

Comment by fgeek on 2017-09-18 15:24:07+00:00:
https://nvd.nist.gov/vuln/detail/CVE-2017-14533

Build script:
#!/bin/bash -eu
# Minimized build script with only core build commands
set -eu
./configure --prefix="$WORK" --disable-shared --disable-docs
make "-j$(nproc)"
make install -j$(nproc)

Dockerfile:
FROM hwiwonlee/secb.base:latest
RUN apt-get update && apt-get install -y make autoconf automake libtool
RUN git clone https://github.com/imagemagick/imagemagick imagemagick
RUN git -C imagemagick checkout 001ab5627f2b4cf8cb1f0f6c4d37c565d7dc5cff
WORKDIR $SRC/imagemagick
COPY build.sh $SRC/

Additional files:
filename: crop_fuzzer.cc
content: #include <cstdint>

#include <Magick++/Blob.h>
#include <Magick++/Image.h>

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  uint16_t Width;
  uint16_t Height;
  if (Size < (sizeof(Width) + sizeof(Height))) {
    return 0;
  }
  Width = *reinterpret_cast<const uint16_t *>(Data);
  Height = *reinterpret_cast<const uint16_t *>(Data + sizeof(Width));
  const Magick::Blob blob(Data + sizeof(Width) + sizeof(Height),
                          Size - (sizeof(Width) + sizeof(Height)));
  Magick::Image image;
  try {
    image.read(blob);
  } catch (Magick::Exception &e) {
    return 0;
  }
  image.crop(Magick::Geometry(Width, Height));
  return 0;
}

filename: encoder_fuzzer.cc
content: #include <cstdint>

#include <Magick++/Blob.h>
#include <Magick++/Image.h>

#define FUZZ_ENCODER_STRING_LITERAL(name) #name
#define FUZZ_ENCODER FUZZ_ENCODER_STRING_LITERAL(FUZZ_IMAGEMAGICK_ENCODER)

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  const Magick::Blob blob(Data, Size);
  Magick::Image image;
  try {
    image.read(blob);
  } catch (Magick::Exception &e) {
    return 0;
  }

  Magick::Blob outBlob;
  try {
    image.write(&outBlob, FUZZ_ENCODER);
  } catch (Magick::Exception &e) {
  }
  return 0;
}

filename: encoder_list.cc
content: #include <iostream>

#include <Magick++/Blob.h>
#include <Magick++/Image.h>

extern "C" int main() {
  size_t nFormats;
  Magick::ExceptionInfo ex;
  const Magick::MagickInfo **formats = GetMagickInfoList("*", &nFormats, &ex);

  for (size_t i = 0; i < nFormats; i++) {
    const Magick::MagickInfo *format = formats[i];
    if (format->encoder && format->name) {
      std::cout << format->name << std::endl;
    }
  }
}

filename: enhance_fuzzer.cc
content: #include <cstdint>

#include <Magick++/Blob.h>
#include <Magick++/Image.h>

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  const Magick::Blob blob(Data, Size);
  Magick::Image image;
  try {
    image.read(blob);
    image.enhance();
  } catch (Magick::Exception &e) {
    return 0;
  }
  return 0;
}

filename: huffman_decode_fuzzer.cc
content: #include <cstdint>

#include <Magick++/Blob.h>
#include <Magick++/Image.h>

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  const Magick::Blob blob(Data, Size);
  Magick::Image image;
  try {
    image.read(blob);
  } catch (Magick::Exception &e) {
    return 0;
  }
  Magick::ExceptionInfo ex;
  auto res = HuffmanDecodeImage(image.image(), &ex);
  return 0;
}

filename: rotate_fuzzer.cc
content: #include <cstdint>

#include <Magick++/Blob.h>
#include <Magick++/Image.h>

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  if (Size < sizeof(double)) {
    return 0;
  }
  double Degrees = *reinterpret_cast<const double *>(Data);
  if (!isfinite(Degrees)) {
    return 0;
  }
  const Magick::Blob blob(Data + sizeof(Degrees), Size - sizeof(Degrees));
  Magick::Image image;
  try {
    image.read(blob);
  } catch (Magick::Exception &e) {
    return 0;
  }
  image.rotate(Degrees);
  return 0;
}