A libvorbis security update has been released for Debian GNU/Linux 9 LTS.

DLA 2828-1: libvorbis security update

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Debian LTS Advisory DLA-2828-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Adrian Bunk
November 27, 2021   https://wiki.debian.org/LTS
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Package : libvorbis
Version : 1.3.5-4+deb9u3
CVE ID : CVE-2017-14160 CVE-2018-10392 CVE-2018-10393
Debian Bug : 876780

Several vulnerabilities were fixed in libvorbis, a popular library for
the Vorbis audio codec.

CVE-2017-14160
CVE-2018-10393

Improve bound checking for very low sample rates.

CVE-2018-10392

Validate the number of channels in vorbisenc.c

For Debian 9 stretch, these problems have been fixed in version
1.3.5-4+deb9u3.

We recommend that you upgrade your libvorbis packages.

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

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