Fedora 21 Update: libmatroska-1.4.2-1.fc21

[updates at fedoraproject.org]

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Fedora Update Notification
FEDORA-2015-0770
2015-01-17 04:40:50
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Name        : libmatroska
Product     : Fedora 21
Version     : 1.4.2
Release     : 1.fc21
URL         : http://www.matroska.org/
Summary     : Open audio/video container format library
Description :
Matroska is an extensible open standard Audio/Video container.  It
aims to become THE standard of multimedia container formats.  Matroska
is usually found as .mkv files (matroska video) and .mka files
(matroska audio).

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Update Information:

This update brings the mkvtoolnix/libmatroska/libebml stack to the latest upstream release. See respective changelogs for list of changes:

mkvtoolnix:
https://www.bunkus.org/videotools/mkvtoolnix/doc/ChangeLog

libmatroska:
* build system: switched the build system from hand-crafted Makefiles to an autoconf/automake-based system. A pkg-config file will be installed as well; its name is »libmatroska«. Based on a similar patch for libEBML by Jan Engelhardt <jengelh at inai.de>.
* KaxBlock::ReadData(): fixed several instances of unchecked memory access leading to invalid memory access/segmentation faults with invalid or broken data inside block groups/simple blocks.
* KaxBlock::ReadInternalHead(): fixed a off-by-one buffer overflow if with EBML lacing and exactly one frame in the lace.

libebml:
* EbmlElement::Render(): doesn't catch exceptions anymore. Instead exceptions generated from the IOCallback class (e.g. if a write failed) are propagated to the caller.
* build system: switched the build system from hand-crafted Makefiles to an autoconf/automake-based system. A pkg-config file will be installed as well; its name is »libebml«. Patch by Jan Engelhardt <jengelh at inai.de>.
* EbmlMaster::Read(): when reading with SCOPE_ALL_DATA only those elements that could successfully be read will be kept (e.g. defective block groups will be dropped).
* EbmlMemoryStream: add a new class for safe memory access that throws exception on failures.
* EbmlMaster: Fixed read() trying to calculate the end position of elements with an unknown size. This avoids endless loops and assertions in certain cases. See https://trac.bunkus.org/ticket/1089
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ChangeLog:

* Wed Jan 14 2015 Dominik Mierzejewski <rpm at greysector.net> - 1.4.2-1
- Update to 1.4.2
- Bump min required libebml version to 1.3.1
- Adapt specfile to the new autotools-based build system
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References:

  [ 1 ] Bug #1182372 - libebeml-1.3.1 is available
        https://bugzilla.redhat.com/show_bug.cgi?id=1182372
  [ 2 ] Bug #1178766 - libmatroska-1.4.2 is available
        https://bugzilla.redhat.com/show_bug.cgi?id=1178766
  [ 3 ] Bug #1178772 - mkvtoolnix-7.5.0 is available
        https://bugzilla.redhat.com/show_bug.cgi?id=1178772
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This update can be installed with the "yum" update program.  Use
su -c 'yum update libmatroska' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora Project GPG key.  More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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