![]() ![]() However, if your colleague hashed the original file, it will take just a few seconds. Some encrypted files are set to never change the last modified date or the file size, so even if you got your colleague to resend the original file, you still have no quick way to check the integrity of your copy. You manage to recover it, but how do you know it's still perfectly intact and is a true copy of the original? When you open it, you find the file’s been corrupted. Solution Update the affected mkvtoolnix package.Someone has created a lengthy document and sent you an encrypted copy. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. mkvpropedit, MKVToolNix GUI's header editor: fixed file corruption when a one-byte space must be covered with a new EBML void element but all surrounding elements have a 'size length' field that's eight bytes long already. mkvextract: IVF extractor (AV1, VP8, VP8): the frame rate header fields weren't clamped to 16 bits properly causing wrong frame rates to be written in certain situations. That avoids problems if there are large gaps between teletext subtitle frames which could lead to frames being interleaved too late. mkvmerge: MPEG transport stream reader, teletext subtitles: the decision whether or not to keep frames around in order to potentially merge them with the following frame is made sooner. mkvmerge: MP4/QuickTime reader: fixed handling of PCM audio with FourCC `in24`. # Bug fixes - mkvmerge: JSON identification: fixed a bug when removing invalid UTF-8 data from strings before they're output as JSON. She can later select from them in 'track name' combo box. ![]() MKVToolNix GUI: multiplexer, header editor: the user can enter a list of predefined track names in the preferences. MKVToolNix GUI: added a menu item ('Help' → 'System information') for displaying information about the system MKVToolNix is running on in order to make debugging easier. MKVToolNix GUI: automatic scaling for high DPI displays is activated if the GUI is compiled with Qt ≥ 5.6.0. mkvmerge: VP9: mkvmerge will now create codec private data according to the VP9 codec mapping described in the WebM specifications. mkvextract: IVF extractor (AV1, VP8, VP9): precise values will be used for the frame rate numerator & denominator header fields for certain well-known values of the track's default duration. mkvextract: added support for extracting AV1 to IVF. mkvmerge, mkvextract: simple text subtitles: added a workaround for simple text subtitle tracks that don't contain a duration. mkvmerge: DTS: implemented dialog normalization gain removal for extension substreams. mkvmerge: MP4 reader: added support for AV1. mkvmerge: AV1 support: the `-engage enable_av1` option has been removed again. mkvmerge: AV1 packetizer: updated the code for the finalized AV1-in-Matroska & WebM mapping specification. # Version 28.0.0 'Voice In My Head' # New features and enhancements - mkvmerge: AV1 parser: updated the code for the finalized AV1 bitstream specification. MKVToolNix GUI: info tool: the tool will no longer stop scanning elements when an EBML Void element is found after the first Cluster element. mkvmerge: Matroska reader, AV1: mkvmerge will try to re-create the `av1C` data stored in Codec Private when reading AV1 from Matroska or WebM files created by mkvmerge v28.0.0. mkvmerge: AV1 parser: when creating the `av1C` structure for the Codec Private element the sequence header OBU wasn't copied completely: its common data (type field & OBU size among others) was missing. # Version 28.1.0 'Morning Child' # Bug fixes - mkvmerge: AV1 parser: fixed an error in the sequence header parser if neither the `reduced_still_picture_header` nor the `frame_id_numbers_present_flag` is set. The vulnerability was reported as Cisco TALOS 2018-0694 on. This can be triggered by specially crafted Matroska files and lead to arbitrary code execution. Description # Version 28.2.0 'The Awakening' # Bug fixes - mkvmerge, mkvinfo, mkvextract, mkvpropedit, MKVToolNix GUI's info tool & chapter editor: fixed a case of memory being accessed after it had been freed earlier. ![]() Synopsis The remote Fedora host is missing a security update. ![]()
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