LibTIFF:heap buffer overflow in PSDataColorContig

Description

LibTIFF This software provides support for the Tag Image File Format (TIFF), a widely used format for storing image data. The latest version of the TIFF specification is available on-line in several different formats.

A heap buffer overflow was found in function PSDataColorContig in tiff2ps.c,which allows attackers to cause a denial of service via a crafted file.

#tiff2ps $FILE
=================================================================
==88810==ERROR: AddressSanitizer: heap-buffer-overflow on address
0x60b00000affe at pc 0x00000040c824 bp 0x7ffc07c5cd00 sp 0x7ffc07c5ccf8
READ of size 1 at 0x60b00000affe thread T0
    #0 0x40c823 in PSDataColorContig
/home/haojun/Downloads/testopensourcecode/tiff-4.0.7/tools/tiff2ps.c:2487
    #1 0x40ba1d in PSpage
/home/haojun/Downloads/testopensourcecode/tiff-4.0.7/tools/tiff2ps.c:2347
    #2 0x4087ce in TIFF2PS
/home/haojun/Downloads/testopensourcecode/tiff-4.0.7/tools/tiff2ps.c:1606
    #3 0x40379a in main
/home/haojun/Downloads/testopensourcecode/tiff-4.0.7/tools/tiff2ps.c:473
    #4 0x7fd0cae8ab34 in __libc_start_main (/lib64/libc.so.6+0x21b34)
    #5 0x402bd8
(/home/haojun/Downloads/testopensourcecode/tiff-4.0.7_build/bin/tiff2ps+0x402bd8)

0x60b00000affe is located 0 bytes to the right of 110-byte region
[0x60b00000af90,0x60b00000affe)
allocated by thread T0 here:
    #0 0x7fd0cbc7ebb8 in __interceptor_malloc
../../../../libsanitizer/asan/asan_malloc_linux.cc:62
    #1 0x45f0cd in _TIFFmalloc
/home/haojun/Downloads/testopensourcecode/tiff-4.0.7/libtiff/tif_unix.c:316
    #2 0x40bef4 in PSDataColorContig
/home/haojun/Downloads/testopensourcecode/tiff-4.0.7/tools/tiff2ps.c:2443
    #3 0x40ba1d in PSpage
/home/haojun/Downloads/testopensourcecode/tiff-4.0.7/tools/tiff2ps.c:2347
    #4 0x4087ce in TIFF2PS
/home/haojun/Downloads/testopensourcecode/tiff-4.0.7/tools/tiff2ps.c:1606
    #5 0x40379a in main
/home/haojun/Downloads/testopensourcecode/tiff-4.0.7/tools/tiff2ps.c:473
    #6 0x7fd0cae8ab34 in __libc_start_main (/lib64/libc.so.6+0x21b34)

SUMMARY: AddressSanitizer: heap-buffer-overflow
/home/haojun/Downloads/testopensourcecode/tiff-4.0.7/tools/tiff2ps.c:2487 in
PSDataColorContig
Shadow bytes around the buggy address:
  0x0c167fff95a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c167fff95b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c167fff95c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c167fff95d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c167fff95e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x0c167fff95f0: fa fa 00 00 00 00 00 00 00 00 00 00 00 00 00[06]
  0x0c167fff9600: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c167fff9610: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c167fff9620: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c167fff9630: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c167fff9640: 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
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
==88810==ABORTING

Affected version:4.0.7
Fixed version:N/A
Commit fix:N/A
Credit: ADLab of Venustech.
CVE:N/A
Reproducer:
Timeline:
2017-04-20:bug discovered and reported upstream bugzilla
2017-06-21:blog post about the issue
Permalink:

http://somevulnsofadlab.blogspot.com/2017/06/libtiffheap-buffer-overflow-in_45.html

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