depthfirst-dev[bot]
664d44a825
latm_parse_packet() accumulated attacker-controlled AU length bytes in a signed int and later checked data->pos + cur_len against data->len. That addition could overflow, allowing malformed packets to bypass the bounds check and drive memcpy() far past the end of the LATM buffer. Reject length-byte accumulation that would exceed the remaining packet size, and compare cur_len against the remaining buffer space using subtraction so the bounds check cannot overflow. Fixes: DFVULN-610 *Vulnerability reported by Zhenpeng (Leo) Lin at depthfirst* *Patch validated by Zheng Yu at depthfirst*
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.