heap-buffer-overflow on jhead-3.04/jpgfile.c:285 ReadJpegSections

[Fstark]

fstark@fstark-virtual-machine:~/jhead$ ./jhead fuzz1\:id\:000015\,sig\:06\,src\:000476\,time\:412880\,op\:arith8\,pos\:31\,val\:+29
=================================================================
==957==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60200000efd2 at pc 0x7f6d38f94676 bp 0x7ffd0abe47d0 sp 0x7ffd0abe3f78
READ of size 4 at 0x60200000efd2 thread T0
    #0 0x7f6d38f94675 in memcmp (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x77675)
    #1 0x40e810 in ReadJpegSections /home/fstark/jhead/jpgfile.c:285
    #2 0x410e86 in ReadJpegSections /home/fstark/jhead/jpgfile.c:125
    #3 0x410e86 in ReadJpegFile /home/fstark/jhead/jpgfile.c:378
    #4 0x40858b in ProcessFile /home/fstark/jhead/jhead.c:905
    #5 0x402f2c in main /home/fstark/jhead/jhead.c:1756
    #6 0x7f6d3886a83f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2083f)
    #7 0x406708 in _start (/home/fstark/jhead/jhead+0x406708)

0x60200000efd2 is located 0 bytes to the right of 2-byte region [0x60200000efd0,0x60200000efd2)
allocated by thread T0 here:
    #0 0x7f6d38fb5602 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
    #1 0x40e4a8 in ReadJpegSections /home/fstark/jhead/jpgfile.c:172

SUMMARY: AddressSanitizer: heap-buffer-overflow ??:0 memcmp
Shadow bytes around the buggy address:
  0x0c047fff9da0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff9db0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff9dc0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff9dd0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff9de0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x0c047fff9df0: fa fa fa fa fa fa fa fa fa fa[02]fa fa fa 02 fa
  0x0c047fff9e00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff9e10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff9e20: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff9e30: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff9e40: 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
==957==ABORTING