- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 202005-11
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                           https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: VLC: Buffer overflow
     Date: May 14, 2020
     Bugs: #721940
       ID: 202005-11

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
=======
A buffer overflow in VLC might allow local or remote attacker(s) to
execute arbitrary code.

Background
=========
VLC is a cross-platform media player and streaming server.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-video/vlc              < 3.0.10                  >= 3.0.10

Description
==========
A buffer overflow in DecodeBlock in sdl_image.c was discovered.

Impact
=====
A remote user could craft a specifically crafted image file that could
execute arbitrary code or cause denial of service.

Workaround
=========
The user should refrain from opening files from untrusted third parties
or accessing untrusted remote sites (or disable the VLC browser
plugins), until they upgrade.

Resolution
=========
All VLC users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-video/vlc-3.0.10"

References
=========
[ 1 ] CVE-2019-19721
      https://nvd.nist.gov/vuln/detail/CVE-2019-19721
[ 2 ] Upstream patch

;a=commit;h=72afe7ebd8305bf4f5360293b8621cde52ec506b
[ 3 ] VideoLAN-SB-VLC-309
      https://www.videolan.org/security/sb-vlc309.html

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 https://security.gentoo.org/glsa/202005-11

Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
======
Copyright 2020 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5/