A firefox-esr security update has been released for Debian GNU/Linux 10 to address multiple security issues.

DLA 3080-1: firefox-esr security update

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Debian LTS Advisory DLA-3080-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Anton Gladky
August 24, 2022   https://wiki.debian.org/LTS
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Package : firefox-esr
Version : 91.13.0esr-1~deb10u1
CVE ID : CVE-2022-38472 CVE-2022-38473 CVE-2022-38478
Debian Bug :

Multiple security issues have been found in the Mozilla Firefox
web browser, which could potentially result in the execution
of arbitrary code or spoofing.

For Debian 10 buster, these problems have been fixed in version
91.13.0esr-1~deb10u1.

We recommend that you upgrade your firefox-esr packages.

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

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