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AUSCERT External Security Bulletin Redistribution
ESB-2020.1968
USN-4383-1: Firefox vulnerabilities
5 June 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Firefox
Publisher: Ubuntu
Operating System: Ubuntu
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
Resolution: Patch/Upgrade
CVE Names: CVE-2020-12411 CVE-2020-12410 CVE-2020-12409
CVE-2020-12408 CVE-2020-12407 CVE-2020-12406
CVE-2020-12405 CVE-2020-12399
Reference: ESB-2020.1934
ESB-2020.1929
ESB-2020.1920
ESB-2020.1919
Original Bulletin:
https://usn.ubuntu.com/4383-1/
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USN-4383-1: Firefox vulnerabilities
4 June 2020
firefox vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 20.04 LTS
o Ubuntu 19.10
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Summary
Firefox could be made to crash or run programs as your login if it opened a
malicious website.
Software Description
o firefox - Mozilla Open Source web browser
Details
Multiple security issues were discovered in Firefox. If a user were tricked in
to opening a specially crafted website, an attacker could potentially exploit
these to cause a denial of service, spoof the addressbar, or execute arbitrary
code. (CVE-2020-12405, CVE-2020-12406, CVE-2020-12407, CVE-2020-12408,
CVE-2020-12409, CVE-2020-12410, CVE-2020-12411)
It was discovered that NSS showed timing differences when performing DSA
signatures. An attacker could potentially exploit this to obtain private keys
using a timing attack. (CVE-2020-12399)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04 LTS
firefox - 77.0.1+build1-0ubuntu0.20.04.1
Ubuntu 19.10
firefox - 77.0.1+build1-0ubuntu0.19.10.1
Ubuntu 18.04 LTS
firefox - 77.0.1+build1-0ubuntu0.18.04.1
Ubuntu 16.04 LTS
firefox - 77.0.1+build1-0ubuntu0.16.04.1
To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .
After a standard system update you need to restart Firefox to make all the
necessary changes.
References
o CVE-2020-12399
o CVE-2020-12405
o CVE-2020-12406
o CVE-2020-12407
o CVE-2020-12408
o CVE-2020-12409
o CVE-2020-12410
o CVE-2020-12411
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