*** This bug is a security vulnerability ***
Public security bug reported:
This bug was found while fuzzing ImageMagick with afl-fuzz
Tested on ImageMagick version d8382f9c0ffa52057271a6a323e7e062f0fe4ff6
Command: magick infile /dev/null
Build info:
#Configure command:
CC=afl-clang-fast CXX=afl-clang-fast++ ./configure --with-bzlib=no
--with-djvu=no --with-dps=no --with-fftw=no --with-fpx=no --with-fontconfig=no
--with-freetype=no --with-gvc=no --with-jbig=no --with-jpeg=no --with-lcms=no
--with-lqr=no --with-ltdl=no --with-lzma=no --with-openexr=no --with-openjp2=no
--with-pango=no --with-png=no --with-tiff=no --with-wmf=no --with-x=no
--with-xml=no --with-zlib=no --enable-hdri=no --enable-shared=no
#Make command:
CC=afl-clang-fast CXX=afl-clang-fast++ make
ASAN output:
=================================================================
==20581==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xb480485c at
pc 0x886f19e bp 0xbf8c63a8 sp 0xbf8c63a0
READ of size 4 at 0xb480485c thread T0
#0 0x886f19d in ReadVIFFImage
/home/user/Desktop/imagemagick_reporting/ImageMagick/coders/viff.c:445
#1 0x8a8b97a in ReadImage
/home/user/Desktop/imagemagick_reporting/ImageMagick/MagickCore/constitute.c:494
#2 0x8a937ef in ReadImages
/home/user/Desktop/imagemagick_reporting/ImageMagick/MagickCore/constitute.c:844
#3 0x93754a9 in CLINoImageOperator
/home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/operation.c:4663
#4 0x937d98f in CLIOption
/home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/operation.c:5157
#5 0x910afad in ProcessCommandOptions
/home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/magick-cli.c:474
#6 0x910e325 in MagickImageCommand
/home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/magick-cli.c:786
#7 0x9112809 in MagickCommandGenesis
/home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/mogrify.c:172
#8 0x80de10d in MagickMain
/home/user/Desktop/imagemagick_reporting/ImageMagick/utilities/magick.c:74
#9 0x80de10d in main
/home/user/Desktop/imagemagick_reporting/ImageMagick/utilities/magick.c:85
#10 0xb7549a82 in __libc_start_main
/build/buildd/eglibc-2.19/csu/libc-start.c:287
#11 0x80ddf34 in _start
(/home/user/Desktop/imagemagick_reporting/ImageMagick/utilities/magick+0x80ddf34)
0xb480485c is located 0 bytes to the right of 60-byte region
[0xb4804820,0xb480485c)
allocated by thread T0 here:
#0 0x80c6b61 in malloc
(/home/user/Desktop/imagemagick_reporting/ImageMagick/utilities/magick+0x80c6b61)
#1 0x81939e9 in AcquireMagickMemory
/home/user/Desktop/imagemagick_reporting/ImageMagick/MagickCore/memory.c:463
#2 0x81939e9 in AcquireQuantumMemory
/home/user/Desktop/imagemagick_reporting/ImageMagick/MagickCore/memory.c:539
#3 0x8a8b97a in ReadImage
/home/user/Desktop/imagemagick_reporting/ImageMagick/MagickCore/constitute.c:494
#4 0x8a937ef in ReadImages
/home/user/Desktop/imagemagick_reporting/ImageMagick/MagickCore/constitute.c:844
#5 0x93754a9 in CLINoImageOperator
/home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/operation.c:4663
#6 0x937d98f in CLIOption
/home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/operation.c:5157
#7 0x910afad in ProcessCommandOptions
/home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/magick-cli.c:474
SUMMARY: AddressSanitizer: heap-buffer-overflow
/home/user/Desktop/imagemagick_reporting/ImageMagick/coders/viff.c:445
ReadVIFFImage
Shadow bytes around the buggy address:
0x369008b0: 00 00 00 00 00 00 00 04 fa fa fa fa 00 00 00 00
0x369008c0: 00 00 00 04 fa fa fa fa 00 00 00 00 00 00 00 04
0x369008d0: fa fa fa fa 00 00 00 00 00 00 00 04 fa fa fa fa
0x369008e0: 00 00 00 00 00 00 00 04 fa fa fa fa 00 00 00 00
0x369008f0: 00 00 00 04 fa fa fa fa 00 00 00 00 00 00 00 04
=>0x36900900: fa fa fa fa 00 00 00 00 00 00 00[04]fa fa fa fa
0x36900910: 00 00 00 00 00 00 00 fa fa fa fa fa 00 00 00 00
0x36900920: 00 00 00 04 fa fa fa fa 00 00 00 00 00 00 00 04
0x36900930: fa fa fa fa 00 00 00 00 00 00 00 04 fa fa fa fa
0x36900940: 00 00 00 00 00 00 00 04 fa fa fa fa 00 00 00 00
0x36900950: 00 00 00 04 fa fa fa fa 00 00 00 00 00 00 00 04
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Heap right redzone: fb
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack partial redzone: f4
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
ASan internal: fe
==20581==ABORTING
** Affects: imagemagick (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "viff.c_445"
https://bugs.launchpad.net/bugs/1533452/+attachment/4548913/+files/id%3A000071%2Csig%3A06%2Csrc%3A002008%2Cop%3Aflip1%2Cpos%3A580
** Information type changed from Private Security to Public Security
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https://bugs.launchpad.net/bugs/1533452
Title:
out-of-bounds read in coders/psd.c:797 ReadPSDChannelPixels
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