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01044d0453
Fix: vulnerability:019f3b84-903b-75fb-a8de-fad1c2d7e99c
The parse_playlist() path for opening a new child playlist (in == NULL)
directly called c->ctx->io_open(), bypassing the protocol whitelist and
file-extension checks that open_url() enforces. This allowed child URLs
from a master playlist to use protocols other than file/http/data or to
have disallowed extensions.
Route the !in branch through open_url() so that all child playlists are
subject to the same security policy as segment URLs.
Fixes a security bypass in HLS master playlist parsing.
Found-by: depthfirst
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
(cherry picked from commit 23602df9cd)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides means to alter decoded audio and video through a directed graph of connected filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements color conversion and scaling routines.
Tools
- ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
- ffplay is a minimalistic multimedia player.
- ffprobe is a simple analysis tool to inspect multimedia content.
- Additional small tools such as
aviocat,ismindexandqt-faststart.
Documentation
The offline documentation is available in the doc/ directory.
The online documentation is available in the main website and in the wiki.
Examples
Coding examples are available in the doc/examples directory.
License
FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.
Contributing
Patches should be submitted to the ffmpeg-devel mailing list using
git format-patch or git send-email. Github pull requests should be
avoided because they are not part of our review process and will be ignored.