GNU binutils - bfd_get_string Stack Buffer Overflow Exploit

ID 1337DAY-ID-27980
Type zdt
Reporter Alexandre Adamski
Modified 2017-06-19T00:00:00


Exploit for linux platform in category dos / poc

I have been fuzzing objdump with American Fuzzy Lop and AddressSanitizer.
Please find attached the minimized file causing the issue ("Input") and the
ASAN report log ("Output"). Below is the reduced stacktrace with links to the
corresponding source lines on a GitHub mirror.
The command I used was `objdump -D <file>`.
Let me know if there is any additional information I can provide.
Input: 02d8fa874391d563ccfd5911ff5f5cf8.fe651c9b03ff955c157ecee745208476.min
Output: 02d8fa874391d563ccfd5911ff5f5cf8.fe651c9b03ff955c157ecee745208476.txt
Error in "bfd_get_string": stack-buffer-overflow
  in bfd_get_string at bfd/ieee.c:198
  in read_id at bfd/ieee.c:227
  in ieee_object_p at bfd/ieee.c:1907
  in bfd_check_format_matches at bfd/format.c:311
  in display_object_bfd at binutils/objdump.c:3602
  in display_any_bfd at binutils/objdump.c:3693
  in display_file at binutils/objdump.c:3714
  in main at binutils/objdump.c:4016
Additional Information:
The command used was `objdump -D <file>`. The compilation flags used were `-g -O2 -fno-omit-frame-pointer -fsanitize=address -fno-sanitize-recover=undefined`. The configuration settings used were `--enable-targets=all --disable-shared`.
Proof of Concept:

# [2018-01-02]  #