CVE-2023-27249: poc/poc_of_swfdump at main · keepinggg/poc

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?

poc/poc_of_swfdump/

Latest commit

Files

Permalink

Failed to load latest commit information.

Type

Name

Latest commit message

Commit time

heap-buffer-overflow****env

ubuntu20.04 gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.1) swfdump - part of swftools 0.9.2

sample

poc.zip

crash

./swfdump -D poc 
==2946990==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x603000000023 at pc 0x7f76f23fca7d bp 0x7fff4af77e40 sp 0x7fff4af775e8
READ of size 11 at 0x603000000023 thread T0
    #0 0x7f76f23fca7c in __interceptor_strlen ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:354
    #1 0x561bf882902a in swf_GetPlaceObject modules/swfobject.c:195
    #2 0x561bf881db3a in main /home/ther/fuzzing/swftools-master/src/swfdump.c:1341
    #3 0x7f76f205c082 in __libc_start_main ../csu/libc-start.c:308
    #4 0x561bf8816ced in _start (/home/ther/fuzzing/swftools-master/src/swfdump+0x23ced)

0x603000000023 is located 0 bytes to the right of 19-byte region [0x603000000010,0x603000000023)
allocated by thread T0 here:
    #0 0x7f76f24a2808 in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cc:144
    #1 0x561bf888d0ef in rfx_alloc /home/ther/fuzzing/swftools-master/lib/mem.c:30
    #2 0x561bf889c4b3  (/home/ther/fuzzing/swftools-master/src/swfdump+0xa94b3)

SUMMARY: AddressSanitizer: heap-buffer-overflow ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:354 in __interceptor_strlen
Shadow bytes around the buggy address:
  0x0c067fff7fb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c067fff7fc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c067fff7fd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c067fff7fe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c067fff7ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c067fff8000: fa fa 00 00[03]fa fa fa fa fa fa fa fa fa fa fa
  0x0c067fff8010: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c067fff8020: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c067fff8030: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c067fff8040: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c067fff8050: 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
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  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
  Shadow gap:              cc
==2946990==ABORTING

CVE-ID

CVE-2023-27249

Discover

zhangzhourui, luhui, tianzhihong at Guangzhou University.