out-of-bounds write in MagickCore/memory.c:707:23

Bug #1539061 reported by Moshe Kaplan on 2016-01-28
256
This bug affects 1 person
Affects Status Importance Assigned to Milestone
imagemagick (Ubuntu)
Undecided
Unassigned

Bug Description

This bug was found while fuzzing ImageMagick with afl-fuzz

Tested on ImageMagick version Tested on git commit 8bc3ab67d818204fe5f0fe1dc29b873d37360461

Command: magick id:000122,sig:06,src:000277,op:havoc,rep:8 /dev/null

=================================================================
==13156==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xb2f0300e at pc 0x8196b43 bp 0xbf95b7c8 sp 0xbf95b7c0
WRITE of size 28 at 0xb2f0300e thread T0
    #0 0x8196b42 in CopyMagickMemory /home/user/Desktop/ImageMagick/MagickCore/memory.c:707:23
    #1 0x86740c7 in EncodeRLE /home/user/Desktop/ImageMagick/coders/pdb.c:692
    #2 0x86740c7 in WritePDBImage /home/user/Desktop/ImageMagick/coders/pdb.c:906
    #3 0x8a9e9d8 in WriteImage /home/user/Desktop/ImageMagick/MagickCore/constitute.c:1091
    #4 0x8aa23bc in WriteImages /home/user/Desktop/ImageMagick/MagickCore/constitute.c:1309
    #5 0x9371daf in CLINoImageOperator /home/user/Desktop/ImageMagick/MagickWand/operation.c:4697
    #6 0x9379bc1 in CLIOption /home/user/Desktop/ImageMagick/MagickWand/operation.c:5157
    #7 0x91080c3 in ProcessCommandOptions /home/user/Desktop/ImageMagick/MagickWand/magick-cli.c:526
    #8 0x910a545 in MagickImageCommand /home/user/Desktop/ImageMagick/MagickWand/magick-cli.c:786
    #9 0x910ea29 in MagickCommandGenesis /home/user/Desktop/ImageMagick/MagickWand/mogrify.c:172
    #10 0x80de12d in MagickMain /home/user/Desktop/ImageMagick/utilities/magick.c:74
    #11 0x80de12d in main /home/user/Desktop/ImageMagick/utilities/magick.c:85
    #12 0xb74a1a82 in __libc_start_main /build/buildd/eglibc-2.19/csu/libc-start.c:287
    #13 0x80ddf54 in _start (/usr/local/bin/magick+0x80ddf54)

0xb2f0300e is located 14 bytes to the right of 128-byte region [0xb2f02f80,0xb2f03000)
allocated by thread T0 here:
    #0 0x80c6b81 in malloc (/usr/local/bin/magick+0x80c6b81)
    #1 0x8193319 in AcquireMagickMemory /home/user/Desktop/ImageMagick/MagickCore/memory.c:475
    #2 0x8193319 in AcquireQuantumMemory /home/user/Desktop/ImageMagick/MagickCore/memory.c:548
    #3 0x8a9e9d8 in WriteImage /home/user/Desktop/ImageMagick/MagickCore/constitute.c:1091
    #4 0x8aa23bc in WriteImages /home/user/Desktop/ImageMagick/MagickCore/constitute.c:1309
    #5 0x9371daf in CLINoImageOperator /home/user/Desktop/ImageMagick/MagickWand/operation.c:4697
    #6 0x9379bc1 in CLIOption /home/user/Desktop/ImageMagick/MagickWand/operation.c:5157
    #7 0x91080c3 in ProcessCommandOptions /home/user/Desktop/ImageMagick/MagickWand/magick-cli.c:526

SUMMARY: AddressSanitizer: heap-buffer-overflow /home/user/Desktop/ImageMagick/MagickCore/memory.c:707 CopyMagickMemory
Shadow bytes around the buggy address:
  0x365e05b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x365e05c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x365e05d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x365e05e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x365e05f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x365e0600: fa[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x365e0610: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x365e0620: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x365e0630: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x365e0640: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x365e0650: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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
==13156==ABORTING

Moshe Kaplan (mk-moshe-kaplan) wrote :

input file to trigger crash

Moshe Kaplan (mk-moshe-kaplan) wrote :
Changed in imagemagick (Ubuntu):
status: New → Confirmed
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package imagemagick - 8:6.9.6.6+dfsg-1ubuntu3

---------------
imagemagick (8:6.9.6.6+dfsg-1ubuntu3) zesty; urgency=medium

  * debian/patches/0020-Revert-GradientImage-change.patch: Revert patch
    per https://github.com/ImageMagick/ImageMagick/issues/316. Thanks
    to Cristy <email address hidden>. Closes LP: #1645406.

 -- Nishanth Aravamudan <email address hidden> Tue, 06 Dec 2016 17:26:36 +0100

Changed in imagemagick (Ubuntu):
status: Confirmed → Fix Released
To post a comment you must log in.
This report contains Public Security information  Edit
Everyone can see this security related information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.