Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.1034
firefox-esr security update
25 March 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: firefox-esr
Publisher: Debian
Operating System: Debian GNU/Linux
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Provide Misleading Information -- Remote with User Interaction
Access Confidential Data -- Remote with User Interaction
Reduced Security -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2021-23987 CVE-2021-23984 CVE-2021-23982
CVE-2021-23981
Reference: ESB-2021.1004
ESB-2021.1003
Original Bulletin:
http://www.debian.org/security/2021/dsa-4874
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Debian Security Advisory DSA-4874-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
March 24, 2021 https://www.debian.org/security/faq
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Package : firefox-esr
CVE ID : CVE-2021-23981 CVE-2021-23982 CVE-2021-23984 CVE-2021-23987
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 attacks.
For the stable distribution (buster), these problems have been fixed in
version 78.9.0esr-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 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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