• [SECURITY] [DSA 5026-1] firefox-esr security update

    From Moritz Muehlenhoff@21:1/5 to All on Sun Dec 19 16:30:02 2021
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    - ------------------------------------------------------------------------- Debian Security Advisory DSA-5026-1 security@debian.org https://www.debian.org/security/ Moritz Muehlenhoff December 19, 2021 https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package : firefox-esr
    CVE ID : CVE-2021-43546 CVE-2021-43545 CVE-2021-43543 CVE-2021-43542
    CVE-2021-43541 CVE-2021-43539 CVE-2021-43538 CVE-2021-43537
    CVE-2021-43536 CVE-2021-43535 CVE-2021-43534 CVE-2021-38509
    CVE-2021-38508 CVE-2021-38507 CVE-2021-38506 CVE-2021-38504
    CVE-2021-38503

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

    Debian follows the extended support releases (ESR) of Firefox. Support
    for the 78.x series has ended, so starting with this update we're now
    following the 91.x releases.

    Between 78.x and 91.x, Firefox has seen a number of feature updates. For
    more information please refer to https://www.mozilla.org/en-US/firefox/91.0esr/releasenotes/

    For the oldstable distribution (buster) one more final toolchain update
    is needed, updated packages will shortly be available as 91.4.1esr-1~deb10u1

    For the stable distribution (bullseye), these problem have been fixed in version 91.4.1esr-1~deb11u1.

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

    Mailing list: debian-security-announce@lists.debian.org
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