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

DLA 3417-1: firefox-esr security update

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Debian LTS Advisory DLA-3417-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Emilio Pozuelo Monfort
May 11, 2023   https://wiki.debian.org/LTS
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Package : firefox-esr
Version : 102.11.0esr-1~deb10u1
CVE ID : CVE-2023-32205 CVE-2023-32206 CVE-2023-32207 CVE-2023-32211
CVE-2023-32212 CVE-2023-32213 CVE-2023-32215

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

For Debian 10 buster, these problems have been fixed in version
102.11.0esr-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