[www-doc] [Git][VideoLAN.org/websites][master] SA1901

[Hugo Beauzée-Luyssen]

Hugo Beauzée-Luyssen pushed to branch master at VideoLAN organization / websites


Commits:
3d244a69 by Hugo Beauzée-Luyssen at 2019-06-21T08:00:28Z
SA1901

- - - - -


2 changed files:

- www.videolan.org/security/index.php
- + www.videolan.org/security/sa1901.php


Changes:

=====================================
www.videolan.org/security/index.php
=====================================
@@ -16,6 +16,14 @@ for underlying third party libraries.
 Please refer to the concerned third parties as appropriate.
 </p>
 
+<h2>2019</h2>
+<dl>
+
+<dt>VideoLAN-SA-1901</dt>
+<dd>Buffer overflow in avi demuxer & heap use after free in mkv demuxer
+ <a href="sa1901.html">Details</a>
+</dd>
+
 <h2>2018</h2>
 <dl>
 


=====================================
www.videolan.org/security/sa1901.php
=====================================
@@ -0,0 +1,54 @@
+<?php
+   $title = "VideoLAN Security Advisory 1901";
+   $lang = "en";
+   $menu = array( "vlc" );
+   $body_color = "red";
+   require($_SERVER["DOCUMENT_ROOT"]."/include/header.php");
+?>
+
+
+<div id="fullwidth">
+
+<h1>Security Advisory 1901</h1>
+<pre>
+Summary           : Read buffer overflow & use-after-free
+Date              : June 2019
+Affected versions : VLC media player 3.0.6 and earlier
+ID                : VideoLAN-SA-1901
+CVE reference     : CVE-2019-5439, CVE-2019-12874
+</pre>
+
+<h2>Details</h2>
+<p>A remote user can create some specially crafted avi or mkv files that, when loaded by the target user, will trigger a
+heap buffer overflow (read) in ReadFrame (demux/avi/avi.c), or a
+heap use after free in zlib_decompress_extra() (demux/mkv/utils.cpp) respectively</p>
+
+<h2>Impact</h2>
+<p>If successful, a malicious third party could trigger either a crash of VLC or an arbitratry code execution with the privileges of the target user.</p>
+
+<h2>Threat mitigation</h2>
+<p>Exploitation of those issues requires the user to explicitly open a specially crafted file or stream.</p>
+<p>ASLR and DEP help reduce exposure, but may be bypassed.</p>
+
+<h2>Workarounds</h2>
+<p>The user should refrain from opening files from untrusted third parties
+or accessing untrusted remote sites (or disable the VLC browser plugins),
+until the patch is applied.
+</p>
+
+<h2>Solution</h2>
+<p>VLC media player <b>3.0.7</b> addresses the issue.
+</p>
+<h2>References</h2>
+<dl>
+<dt>The VideoLAN project</dt>
+<dd><a href="//www.videolan.org/">http://www.videolan.org/</a>
+</dd>
+<dt>VLC official GIT repository</dt>
+<dd><a href="http://git.videolan.org/?p=vlc/vlc-3.0.git">http://git.videolan.org/?p=vlc.git</a>
+</dd>
+</dl>
+
+</div>
+
+<?php footer('$Id$'); ?>



View it on GitLab: https://code.videolan.org/VideoLAN.org/websites/commit/3d244a6938b1e682a1217ac2603f6a59fc82e752

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