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A heap-buffer-overflow in box_code_adobe.c:141 #1569

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seviezhou opened this issue Aug 7, 2020 · 1 comment
Closed

A heap-buffer-overflow in box_code_adobe.c:141 #1569

seviezhou opened this issue Aug 7, 2020 · 1 comment

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@seviezhou
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System info

Ubuntu x86_64, gcc (Ubuntu 5.5.0-12ubuntu1), MP4Box (latest master 2aa266)

Configure

CFLAGS="-g -fsanitize=address" LDFLAGS="-fsanitize=address" ./configure --static-mp4box

Command line

./bin/gcc/MP4Box -diso -out /dev/null @@

AddressSanitizer output

=================================================================
==73339==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60300000e2d3 at pc 0x7f61cb5fc3d5 bp 0x7ffc8913b6b0 sp 0x7ffc8913ae58
READ of size 20 at 0x60300000e2d3 thread T0
    #0 0x7f61cb5fc3d4 in strdup (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x623d4)
    #1 0x56330736c407 in abst_box_read isomedia/box_code_adobe.c:141
    #2 0x56330715bb64 in gf_isom_box_read isomedia/box_funcs.c:1681
    #3 0x56330715bb64 in gf_isom_box_parse_ex isomedia/box_funcs.c:259
    #4 0x56330715d041 in gf_isom_parse_root_box isomedia/box_funcs.c:38
    #5 0x5633071946f5 in gf_isom_parse_movie_boxes isomedia/isom_intern.c:259
    #6 0x56330719f951 in gf_isom_parse_movie_boxes isomedia/isom_intern.c:247
    #7 0x56330719f951 in gf_isom_open_file isomedia/isom_intern.c:740
    #8 0x563306ac97e3 in mp4boxMain /home/seviezhou/gpac/applications/mp4box/main.c:5331
    #9 0x7f61ca5c6b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #10 0x563306a9af09 in _start (/home/seviezhou/gpac/bin/gcc/MP4Box+0x27ff09)

0x60300000e2d3 is located 0 bytes to the right of 19-byte region [0x60300000e2c0,0x60300000e2d3)
allocated by thread T0 here:
    #0 0x7f61cb632612 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98612)
    #1 0x56330736a3a9 in abst_box_read isomedia/box_code_adobe.c:97

SUMMARY: AddressSanitizer: heap-buffer-overflow ??:0 strdup
Shadow bytes around the buggy address:
  0x0c067fff9c00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c067fff9c10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c067fff9c20: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c067fff9c30: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c067fff9c40: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x0c067fff9c50: fa fa fa fa fa fa fa fa 00 00[03]fa fa fa 00 00
  0x0c067fff9c60: 04 fa fa fa 00 00 00 07 fa fa 00 00 00 fa fa fa
  0x0c067fff9c70: 00 00 00 06 fa fa 00 00 00 fa fa fa 00 00 00 fa
  0x0c067fff9c80: fa fa 00 00 00 07 fa fa 00 00 00 fa fa fa 00 00
  0x0c067fff9c90: 00 fa fa fa 00 00 00 fa fa fa 00 00 00 fa fa fa
  0x0c067fff9ca0: 00 00 00 fa fa fa 00 00 00 fa fa fa 00 00 00 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
==73339==ABORTING

POC

heap-overflow-abst_box_read-box_code_adobe-141.zip

@jeanlf
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jeanlf commented Sep 1, 2020

fixed by #1568

@jeanlf jeanlf closed this as completed Sep 1, 2020
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