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AUSCERT External Security Bulletin Redistribution
ESB-2021.1057
firefox-esr security update
26 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-2021.1055
ESB-2021.1034
ESB-2021.1003
Original Bulletin:
http://www.debian.org/lts/security/2021/dla-2607
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Debian LTS Advisory DLA-2607-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Emilio Pozuelo Monfort
March 25, 2021 https://wiki.debian.org/LTS
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Package : firefox-esr
Version : 78.9.0esr-1~deb9u1
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 Debian 9 stretch, these problems have been fixed in version
78.9.0esr-1~deb9u1.
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
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