Project: imagemagick (imagemagick/imagemagick), language: c++
Vulnerability instance: imagemagick.cve-2017-11534
Sanitizer: address

================= Bug Report (1/1) ==================
## Source: GitHub Issue
## URL: https://github.com/ImageMagick/ImageMagick/issues/564
## Description:
Issue: ImageMagick/ImageMagick#564
Title: Memory-Leak in lite_font_map() coders/wmf.c
State: closed
Created by: lcatro
Created at: 2017-07-16 18:31:52+00:00
Labels: bug

Issue Body:
Memory Leak File Link : https://raw.githubusercontent.com/lcatro/My_PoC/master/ImageMagick/memory-leak_output_art_lite_font_map

Trigger Command : ./magick convert memory-leak_output_art_lite_font_map output.art

Leak Detail : 
```
fuzzing@ubuntu:~/fuzzing/ImageMagick/utilities$ ./magick convert graphicsmagick_fuzzing/Memory-Leak-3_output_art_1500226345.53 output.art 
ERROR: player.c (470): libwmf: wmf with bizarre record size; bailing...
ERROR: player.c (471):         please send it to us at http://www.wvware.com/
maximum record size = 672189549
record size = 4115708906
convert: UnableToOpenConfigureFile `magic.xml' @ warning/configure.c/GetConfigureOptions/715.
convert: UnableToOpenConfigureFile `type.xml' @ warning/configure.c/GetConfigureOptions/715.
convert: FailedToScanFile `graphicsmagick_fuzzing/Memory-Leak-3_output_art_1500226345.53' @ error/wmf.c/ReadWMFImage/2694.
convert: NoImagesDefined `output.art' @ error/convert.c/ConvertImageCommand/3275.

=================================================================
==60505==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 4101 byte(s) in 1 object(s) allocated from:
    #0 0x7f576c25d602 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
    #1 0x7f576b766981 in AcquireMagickMemory MagickCore/memory.c:464
    #2 0x7f576b7669d5 in AcquireQuantumMemory MagickCore/memory.c:537
    #3 0x7f576b884d37 in AcquireString MagickCore/string.c:136
    #4 0x7f576b88558b in CloneString MagickCore/string.c:285
    #5 0x7f576bbc37dd in lite_font_map coders/wmf.c:2432
    #6 0x7f5768a86b77  (/usr/lib/x86_64-linux-gnu/libwmflite-0.2.so.7+0x6b77)

Direct leak of 256 byte(s) in 1 object(s) allocated from:
    #0 0x7f576c25d602 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
    #1 0x7f57691c20b9  (/usr/lib/x86_64-linux-gnu/libfontconfig.so.1+0x1d0b9)

Indirect leak of 32 byte(s) in 1 object(s) allocated from:
    #0 0x7f576c25d79a in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x9879a)
    #1 0x7f57691c27c8  (/usr/lib/x86_64-linux-gnu/libfontconfig.so.1+0x1d7c8)

SUMMARY: AddressSanitizer: 4389 byte(s) leaked in 3 allocation(s).
```



Comments:
Comment by mikayla-grace on 2017-07-16 19:05:05+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 carnil on 2017-07-25 20:35:28+00:00:
This is CVE-2017-11534

---

Comment by bastien-roucaries on 2017-07-25 21:09:39+00:00:
This is corrected by https://github.com/ImageMagick/ImageMagick/commit/3f21b17f06eacb40dab08738e0abf68fb0d58c90

---

Comment by bastien-roucaries on 2017-07-25 21:41:28+00:00:
This is https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=869711

Commit References:
3f21b17f06eacb40dab08738e0abf68fb0d58c90

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 9871b4ad7400606bbecf7f979b198080f4b107c3
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;
}