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Tasklist

FS#10874 - FFmpeg libavformat "str_read_packet()" Buffer Overflow

Attached to Project: Arch Linux
Opened by james francis toy iv (bbs) - Wednesday, 09 July 2008, 21:12 GMT
Last edited by Eric Belanger (Snowman) - Saturday, 19 July 2008, 02:57 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Paul Mattal (paul)
Architecture All
Severity High
Priority Normal
Reported Version 2007.08-2
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 1
Private No

Details

Description:


A vulnerability has been reported in FFmpeg, which potentially can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error within the "str_read_packet()" function in libavformat/psxstr.c. This can be exploited to cause a heap-based buffer overflow via a specially crafted STR file.


Solution:

Fixed in the SVN repository at revision 13993.
http://svn.mplayerhq.hu/ffmpeg?view=rev&revision=13993

in addition the AUR package maintainer for ffmpeg-svn should know i'll let him know.
This task depends upon

Closed by  Eric Belanger (Snowman)
Saturday, 19 July 2008, 02:57 GMT
Reason for closing:  Fixed
Comment by Paul Mattal (paul) - Tuesday, 15 July 2008, 12:42 GMT
Argh, the new snapshot is based on 13984.

I'll see if current snapshots are .so compatible and get one into testing, if so.
Comment by Eric Belanger (Snowman) - Friday, 18 July 2008, 22:55 GMT
Can this be moved to extra? I'm asking because the vlc in testing use this snapshot (static build). I could go ahead and move vlc to extra but I would like to know if there are any issues with that ffmpeg snapshot. Plus this is a security update.
Comment by Paul Mattal (paul) - Friday, 18 July 2008, 23:06 GMT
If nobody has complained yet, feel free to move it to extra!

- P
Comment by Eric Belanger (Snowman) - Saturday, 19 July 2008, 02:57 GMT
OK. It's in extra now.

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