Debian: New mplayer packages fix integer overflows
LinuxSecurity.com: Felipe Andres Manzano discovered that mplayer, a multimedia player, is vulnerable to several integer overflows in the Real video stream demuxing code. These flaws could allow an attacker to cause a denial of service (a crash) or potentially the execution of arbitrary code by supplying a maliciously crafted video file.
tcprobe(1) General Commands Manual tcprobe(1)NAME
tcprobe - probe multimedia streams from medium and print information on the standard output
SYNOPSIS
tcprobe
-i name [ -B ] [ -M ] [ -T title ] [ -b bitrate ] [ -H n ] [ -f seekfile ] [ -d verbosity ] [ -v ]
COPYRIGHT
tcprobe is Copyright (C) by Thomas Oestreich.
DESCRIPTION
tcprobe is part of and usually called by transcode.
However, it can also be used independently.
tcprobe reads source (from stdin if not explicitely defined) and prints on the standard output.
OPTIONS -i name
Specify input source. If ommited, stdin is assumed.
You can specify a file, directory, device, mountpoint or host address as input source. tcprobe usually handles the different types
correctly.
-B Binary output to stdout for use in transcode.
-M Use EXPERIMENTAL mplayer probe, useful for streams that tcprobe doesn't recognize elsewhere. With this option enabled, tcprobe
merely acts as a frontend for mplayer; of course mplayer binary needs to be installed and avalaible somewhere in PATH.
-T title
Probe for DVD title
-H n This option tells tcprobe to scan n MB of input data. Default is to scan 1 MB. To detect all subtitles and audio tracks (if avail-
able) it is highly recommended that this n should be at least increased to 10 or even higher. Very often only some audio tracks
start during the first MB of a VOB or DVD file so transcode cannot detect them if not called with a higher value. Please note that
transcode(1) has a similar -H option as well which has the same meaning.
-s n Skip the first n bytes of the input stream. Default is to skip no bytes.
-b bitrate
Set audio encoder bitrate to bitrate
-f seekfile
Read index/seek information from seekfile. This is especially useful for AVI files when it takes a long time to probe when there is
no index in the AVI available. Also see aviindex(1).
-d level
With this option you can specify a bitmask to enable different levels of verbosity (if supported). You can combine several levels
by adding the corresponding values:
QUIET 0
INFO 1
DEBUG 2
STATS 4
WATCH 8
FLIST 16
VIDCORE 32
SYNC 64
COUNTER 128
PRIVATE 256
-v Print version information and exit.
NOTES
tcprobe is a front end for probing various source types and is used in transcode's import modules.
EXAMPLES
The command tcprobe -i foo.avi will print interesting information about the AVI file itself and its video and audio content.
AUTHORS
tcprobe was written by Thomas Oestreich
<ostreich@theorie.physik.uni-goettingen.de> with contributions from many others. See AUTHORS for details.
SEE ALSO aviindex(1), avifix(1), avisync(1), avimerge(1), avisplit(1), tcprobe(1), tcscan(1), tccat(1), tcdemux(1), tcextract(1), tcdecode(1),
transcode(1)tcprobe(1) 12th October 2003 tcprobe(1)