vlc: Multiple vulnerabilities

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                         ZMCIRT Vulnerability Bulletin

                             ZMC-2021.08.4.1000
                      vlc: Multiple vulnerabilities
                               4th August 2021

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Product:           vlc
Publisher:         Debian
Operating System:  Debian GNU/Linux
                   UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Denial of Service -- Remote with User Interaction
                   Reduced Security  -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-25804 CVE-2021-25803 CVE-2021-25802
                   CVE-2021-25801  

Original Bulletin: 
   https://www.debian.org/lts/security/2021/dla-2728

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running vlc check for an updated version of the software for their 
         operating system.

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Hash: SHA256

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Debian LTS Advisory DLA-2728-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                           Chris Lamb
August 03, 2021                               https://wiki.debian.org/LTS
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Package        : vlc
Version        : 3.0.11-0+deb9u2
CVE IDs        : CVE-2021-25801 CVE-2021-25802 CVE-2021-25803 CVE-2021-25804

It was discovered that there were a number of issues in VideoLAN (aka
'vlc', a popular video and multimedia player:

- - - CVE-2021-25801: A buffer overflow vulnerability in the __Parse_indx
  component allowed attackers to cause an out-of-bounds read via a
  crafted .avi file.

- - - CVE-2021-25802: A buffer overflow vulnerability in the
  AVI_ExtractSubtitle component could have allowed attackers to cause
  an out-of-bounds read via a crafted .avi file.

- - - CVE-2021-25803: A buffer overflow vulnerability in the
  vlc_input_attachment_New component allowed attackers to cause an
  out-of-bounds read via a specially-crafted .avi file.

- - - CVE-2021-25804: A NULL-pointer dereference in "Open" in avi.c can
  result in a denial of service (DoS) vulnerability.


For Debian 9 "Stretch", these problems have been fixed in version
3.0.11-0+deb9u2.

We recommend that you upgrade your vlc packages.

For the detailed security status of vlc, please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/vlc

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS



 
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in this document is accurate.  However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. ZMCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.

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