indeo3 decoder lacks buffer checks

Bug #331255 reported by Alex Converse
4
Affects Status Importance Assigned to Milestone
FFmpeg
Fix Released
Unknown
ffmpeg (Ubuntu)
Fix Released
Undecided
Unassigned

Bug Description

FFmpeg's indeo3 decoder lacks any sort of buffer checks and is a sitting target for buffer overflow attacks.

I'm especially worried about the webbrowser -> totem-plugin -> gstreamer-ffmpeg attack vector

The upstream issue report is at:

https://roundup.mplayerhq.hu/roundup/ffmpeg/issue520

Revision history for this message
Kees Cook (kees) wrote :

Thank you for using Ubuntu and taking the time to report a bug. Without a specific reproducer, this class of bug will be very hard to solve. Also, crashes (even as shown in the upstream report) do not mean there is a security issue (though some are). Without those details, I will unmark this as security bug for now.

security vulnerability: yes → no
Changed in ffmpeg (Ubuntu):
status: New → Incomplete
Changed in ffmpeg:
status: Unknown → Confirmed
Changed in ffmpeg:
status: Confirmed → Fix Released
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package ffmpeg - 4:0.6~svn20100505-1ubuntu1

---------------
ffmpeg (4:0.6~svn20100505-1ubuntu1) maverick; urgency=low

  * merge from debian/experimental. remaining changes:
    - don't disable encoders
    - don't build against libfaad, libdirac and libopenjpeg (all in universe)

ffmpeg (4:0.6~svn20100505-1) experimental; urgency=low

  * update to new upstream. Closes: #569727
    - fixes various segfaults and other minor feature improvements
      Closes: #374931, #522449, #501891, #559712, #420231, #369127, #538082,
              #298095, #294422, #561553, #525385, #495274, #420230
      LP: #305286, #457106, #529200, #301723, #305315, #336479, #420230,
          #412063, #428912, #432181, #440591, #453732, #453732, #453732,
      #514259, #515243, #521472, #530186, #530186, #197842, #483317,
     #483317, #539407, #280098, #331255, #566107, #569823, #570305,
     #573190
  * Fixup lintian overrides for new upstream snapshot
  * Bump Standards-Version to 3.8.4
  * Many upstream changes, see upstream Changelog for details
 -- Reinhard Tartler <email address hidden> Wed, 26 May 2010 00:01:17 +0200

Changed in ffmpeg (Ubuntu):
status: Incomplete → Fix Released
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