Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Global buffer overflow while running wavpack #26

Closed
sebastinas opened this issue Feb 3, 2018 · 2 comments
Closed

Global buffer overflow while running wavpack #26

sebastinas opened this issue Feb 3, 2018 · 2 comments

Comments

@sebastinas
Copy link
Contributor

Forwarding a bug report we received in the Debian Bug Tracker (https://bugs.debian.org/889274):

global buffer overflow running wavpack with "-y poc.wav" option

Running 'wavpack -y poc.wav' with the attached file raises global buffer overflow
which may allow a remote attacker to cause unspecified impact including denial-of-service attack
I expected the program to terminate without segfault, but the program crashes as follow

june@june:~/temp/report/wavpack/00000178$ ../../binary/wavpack-5.1.0/cli/.libs/wavpack -y poc.wav

WAVPACK  Hybrid Lossless Audio Compressor  Linux Version 5.1.0
Copyright (c) 1998 - 2017 David Bryant.  All Rights Reserved.

creating poc.wv,=================================================================
==13894==ERROR: AddressSanitizer: global-buffer-overflow on address 0x55555558ac95 at pc 0x7ffff6e96181 bp 0x7fffffffb1f0 sp 0x7fffffffa9a0
READ of size 22 at 0x55555558ac95 thread T0
    #0 0x7ffff6e96180 in strdup (/usr/lib/x86_64-linux-gnu/libasan.so.3+0x58180)
    #1 0x555555578d57 in ParseCaffHeaderConfig /home/june/temp/report/binary/wavpack-5.1.0/cli/caff.c:425
    #2 0x555555567c3a in pack_file /home/june/temp/report/binary/wavpack-5.1.0/cli/wavpack.c:1774
    #3 0x555555565e5e in main /home/june/temp/report/binary/wavpack-5.1.0/cli/wavpack.c:1270
    #4 0x7ffff65902b0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202b0)
    #5 0x5555555609a9 in _start (/home/june/temp/report/binary/wavpack-5.1.0/cli/.libs/wavpack+0xc9a9)

0x55555558ac95 is located 0 bytes to the right of global variable 'TMH_full' defined in 'caff.c:92:19' (0x55555558ac80) of size 21
0x55555558ac95 is located 43 bytes to the left of global variable 'TMH_std' defined in 'caff.c:93:19' (0x55555558acc0) of size 16
SUMMARY: AddressSanitizer: global-buffer-overflow (/usr/lib/x86_64-linux-gnu/libasan.so.3+0x58180) in strdup
Shadow bytes around the buggy address:
  0x0aab2aaa9540: 00 03 f9 f9 f9 f9 f9 f9 07 f9 f9 f9 f9 f9 f9 f9
  0x0aab2aaa9550: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0aab2aaa9560: 00 00 00 00 03 f9 f9 f9 f9 f9 f9 f9 00 00 00 00
  0x0aab2aaa9570: 00 03 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
  0x0aab2aaa9580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0aab2aaa9590: 00 00[05]f9 f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9
  0x0aab2aaa95a0: 03 f9 f9 f9 f9 f9 f9 f9 03 f9 f9 f9 f9 f9 f9 f9
  0x0aab2aaa95b0: 03 f9 f9 f9 f9 f9 f9 f9 05 f9 f9 f9 f9 f9 f9 f9
  0x0aab2aaa95c0: 06 f9 f9 f9 f9 f9 f9 f9 07 f9 f9 f9 f9 f9 f9 f9
  0x0aab2aaa95d0: 00 01 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
  0x0aab2aaa95e0: 05 f9 f9 f9 f9 f9 f9 f9 06 f9 f9 f9 f9 f9 f9 f9
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
==13894==ABORTING

poc.wav can be downloaded from https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=889274;filename=poc.wav;msg=5.

@dbry
Copy link
Owner

dbry commented Feb 12, 2018

Thanks for reporting! Fixed in 8e3fe45 (put wrong issue in commit message)

@dbry dbry closed this as completed Feb 12, 2018
@carnil
Copy link

carnil commented Feb 20, 2018

CVE-2018-7254 was assigned by MITRE to this issue.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

3 participants