A ffmpeg security update has been released for Debian GNU/Linux 10 to address several vulnerabilities.

DSA 4722-1: ffmpeg security update

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Debian Security Advisory DSA-4722-1 security@debian.org
  https://www.debian.org/security/ Moritz Muehlenhoff
July 08, 2020   https://www.debian.org/security/faq
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Package : ffmpeg
CVE ID : CVE-2019-13390 CVE-2019-17539 CVE-2019-17542
CVE-2020-12284 CVE-2020-13904

Several vulnerabilities have been discovered in the FFmpeg multimedia
framework, which could result in denial of service or potentially the
execution of arbitrary code if malformed files/streams are processed.

For the stable distribution (buster), these problems have been fixed in
version 7:4.1.6-1~deb10u1.

We recommend that you upgrade your ffmpeg packages.

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

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