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

IOError: [Errno 22] Invalid argument #16

Open
fgeek opened this Issue Apr 1, 2015 · 1 comment

Comments

Projects
None yet
1 participant
@fgeek
Contributor

fgeek commented Apr 1, 2015

Fuzzed sample: http://bugs.fi/media/afl/enzyme/enzyme-008.mkv
Fuzzers used: http://lcamtuf.coredump.cx/afl/ https://bitbucket.org/jwilk/python-afl
SHA1: f5150df5239856849977e711945631a31f325f48
Notes: This is similar to issue #10

mkvinfo.py:

import sys
import enzyme
inputfile = sys.argv[1]
try:
    with open(inputfile, 'rb') as f:
        mkv = enzyme.MKV(f)
    print(mkv.info)
    print(mkv.video_tracks)
    print(mkv.audio_tracks)
except enzyme.exceptions.MalformedMKVError:
    pass
Traceback (most recent call last):
  File "mkvinfo.py", line 8, in <module>
    mkv = enzyme.MKV(f)
  File "/usr/local/lib/python2.7/dist-packages/enzyme-0.4.1-py2.7.egg/enzyme/mkv.py", line 40, in __init__
    segments = ebml.parse(stream, specs, ignore_element_names=['EBML'], max_level=0)
  File "/usr/local/lib/python2.7/dist-packages/enzyme-0.4.1-py2.7.egg/enzyme/parsers/ebml/core.py", line 172, in parse
    stream.seek(element.size, 1)
IOError: [Errno 22] Invalid argument
@fgeek

This comment has been minimized.

Show comment
Hide comment
@fgeek

fgeek Apr 1, 2015

Contributor

Very similar issue..

Fuzzed sample: http://bugs.fi/media/afl/enzyme/enzyme-009.mkv
Fuzzers used: http://lcamtuf.coredump.cx/afl/ https://bitbucket.org/jwilk/python-afl
SHA1: af1f6d3b031c3f22a95cbdb473bf7882cb1e6858

mkvinfo.py:

import sys
import enzyme
inputfile = sys.argv[1]
try:
    with open(inputfile, 'rb') as f:
        mkv = enzyme.MKV(f)
    print(mkv.info)
    print(mkv.video_tracks)
    print(mkv.audio_tracks)
except enzyme.exceptions.MalformedMKVError:
    pass
Traceback (most recent call last):
  File "mkvinfo.py", line 8, in <module>
    mkv = enzyme.MKV(f)
  File "/usr/local/lib/python2.7/dist-packages/enzyme-0.4.1-py2.7.egg/enzyme/mkv.py", line 40, in __init__
    segments = ebml.parse(stream, specs, ignore_element_names=['EBML'], max_level=0)
  File "/usr/local/lib/python2.7/dist-packages/enzyme-0.4.1-py2.7.egg/enzyme/parsers/ebml/core.py", line 177, in parse
    stream.seek(element.size, 1)
IOError: [Errno 22] Invalid argument
Contributor

fgeek commented Apr 1, 2015

Very similar issue..

Fuzzed sample: http://bugs.fi/media/afl/enzyme/enzyme-009.mkv
Fuzzers used: http://lcamtuf.coredump.cx/afl/ https://bitbucket.org/jwilk/python-afl
SHA1: af1f6d3b031c3f22a95cbdb473bf7882cb1e6858

mkvinfo.py:

import sys
import enzyme
inputfile = sys.argv[1]
try:
    with open(inputfile, 'rb') as f:
        mkv = enzyme.MKV(f)
    print(mkv.info)
    print(mkv.video_tracks)
    print(mkv.audio_tracks)
except enzyme.exceptions.MalformedMKVError:
    pass
Traceback (most recent call last):
  File "mkvinfo.py", line 8, in <module>
    mkv = enzyme.MKV(f)
  File "/usr/local/lib/python2.7/dist-packages/enzyme-0.4.1-py2.7.egg/enzyme/mkv.py", line 40, in __init__
    segments = ebml.parse(stream, specs, ignore_element_names=['EBML'], max_level=0)
  File "/usr/local/lib/python2.7/dist-packages/enzyme-0.4.1-py2.7.egg/enzyme/parsers/ebml/core.py", line 177, in parse
    stream.seek(element.size, 1)
IOError: [Errno 22] Invalid argument
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment