A libde265 security update has been released for Debian GNU/Linux 11 to address multiple security issues.

DSA 5346-1: libde265 security update

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Debian Security Advisory DSA-5346-1 security@debian.org
  https://www.debian.org/security/ Moritz Muehlenhoff
February 10, 2023   https://www.debian.org/security/faq
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Package : libde265
CVE ID : CVE-2020-21594 CVE-2020-21595 CVE-2020-21596 CVE-2020-21597
CVE-2020-21598 CVE-2020-21599 CVE-2020-21600 CVE-2020-21601
CVE-2020-21602 CVE-2020-21603 CVE-2020-21604 CVE-2020-21605
CVE-2020-21606 CVE-2021-35452 CVE-2021-36408 CVE-2021-36409
CVE-2021-36410 CVE-2021-36411 CVE-2022-1253 CVE-2022-43235
CVE-2022-43236 CVE-2022-43237 CVE-2022-43238 CVE-2022-43239
CVE-2022-43240 CVE-2022-43241 CVE-2022-43242 CVE-2022-43243
CVE-2022-43244 CVE-2022-43245 CVE-2022-43248 CVE-2022-43249
CVE-2022-43250 CVE-2022-43252 CVE-2022-43253 CVE-2022-47655
Debian Bug : 1004963 1014977 1014999 1025816 1027179 1029357 1029396 1029397

Multiple security issues were discovered in libde265, an implementation of
the H.265 video codec which may result in denial of service and potentially
the execution of arbitrary code if a malformed media file is processed.

For the stable distribution (bullseye), these problems have been fixed in
version 1.0.11-0+deb11u1.

We recommend that you upgrade your libde265 packages.

For the detailed security status of libde265 please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/libde265

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/