Alert GCSA-20119 - Aggiornamento di sicurezza per Mozilla Firefox e Thunderbird

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   alert ID: GCSA-20119
       data: 17 dicembre 2020
     titolo: Aggiornamento di sicurezza per Mozilla Firefox e Thunderbird

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:: Descrizione del problema

   Mozilla ha rilasciato nuove versioni del browser Firefox
   e del client di posta Thunderbird con le quali risolve
   varie vulnerabilita', alcune di livello critico.

   Maggiori informazioni sono disponibili nelle segnalazioni
   ufficiali alla sezione "Riferimenti".


:: Software interessato

   Firefox versioni precedenti alla 84
   Firefox ESR versioni precedenti alla 78.6
   Thunderbird versioni precedenti alla 78.6


:: Impatto

   Esecuzione remota di codice arbitrario (RCE)
   https://cwe.mitre.org/data/definitions/94.html

   Bypass delle funzionalita' di sicurezza (SFB)

   Accesso a dati riservati (ID)
   https://cwe.mitre.org/data/definitions/200.html

   Provide Misleading Information (spoofing)

   Denial of Service (DoS)
   https://cwe.mitre.org/data/definitions/400.html


:: Soluzioni

   Aggiornare Firefox alle ultime versioni

   Firefox 84
   Firefox ESR 78.6

   https://www.mozilla.org/it/firefox/new/
   https://www.mozilla.org/it/firefox/download/thanks/
   https://www.mozilla.org/en-US/firefox/all/#product-desktop-release
   https://www.mozilla.org/en-US/firefox/organizations/
   https://support.mozilla.org/en-US/kb/update-firefox-latest-release

   Aggiornare Thunderbird all'ultima versione

   Thunderbird 78.6

   https://support.mozilla.org/it/kb/aggiornamento-di-thunderbird
   https://www.mozilla.org/it/thunderbird/
   https://www.thunderbird.net/en-US/thunderbird/all/


:: Riferimenti

   Mozilla Foundation Security Advisory
   https://www.mozilla.org/en-US/security/advisories/mfsa2020-54/
   https://www.mozilla.org/en-US/security/advisories/mfsa2020-55/
   https://www.mozilla.org/en-US/security/advisories/mfsa2020-56/

   What's new in Firefox - Release Notes
   https://www.mozilla.org/en-US/firefox/84.0/releasenotes/

   Thunderbird - Release Notes
   https://www.thunderbird.net/en-US/thunderbird/78.6.0/releasenotes/

   Ubuntu Security Notice
   https://ubuntu.com/security/notices/USN-4671-1

   Debian Security Advisory
   https://www.debian.org/security/2020/dsa-4813
   https://www.debian.org/security/2020/dsa-4815
   https://www.debian.org/lts/security/2020/dla-2496

   Red Hat Security Advisory
   https://access.redhat.com/errata/RHSA-2020:5561
   https://access.redhat.com/errata/RHSA-2020:5562
   https://access.redhat.com/errata/RHSA-2020:5563
   https://access.redhat.com/errata/RHSA-2020:5564
   https://access.redhat.com/errata/RHSA-2020:5565

   Threatpost
   https://threatpost.com/firefox-patches-critical-mystery-bug-also-impacting-google-chrome/162294/

   I riferimenti Mitre CVE sono disponibili nell'advisory originale.


GARR CERT Security Alert - subscribe/unsubscribe:
http://www.cert.garr.it/alert/ricevi-gli-alert-di-cert

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