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AUSCERT External Security Bulletin Redistribution
ESB-2020.0508.2
USN-4278-1: Firefox vulnerabilities
27 February 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
Cross-site Scripting -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-6801 CVE-2020-6800 CVE-2020-6798
CVE-2020-6796
Reference: ASB-2020.0037
ASB-2020.0036
ASB-2020.0035
ESB-2020.0493
Original Bulletin:
https://usn.ubuntu.com/4278-1/
https://usn.ubuntu.com/4278-3/
Comment: This bulletin contains two (2) Ubuntu security advisories.
Revision History: February 27 2020: USN-4278-3 addresses regressions introduced in USN-4278-1
February 14 2020: Initial Release
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USN-4278-3: Firefox regressions
26 February 2020
firefox regressions
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 19.10
o Ubuntu 18.04 LTS
Summary
USN-4278-1 caused some minor regressions in Firefox.
Software Description
o firefox - Mozilla Open Source web browser
Details
USN-4278-1 fixed vulnerabilities in Firefox. The update introduced various
minor regressions. This update fixes the problem.
We apologize for the inconvenience.
Original advisory 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, conduct cross-site scripting (XSS) attacks,
or execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 19.10
firefox - 73.0.1+build1-0ubuntu0.19.10.1
Ubuntu 18.04 LTS
firefox - 73.0.1+build1-0ubuntu0.18.04.1
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 USN-4278-1
o LP: 1864852
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USN-4278-1: Firefox vulnerabilities
13 February 2020
firefox vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 19.10
o Ubuntu 18.04 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, conduct cross-site scripting (XSS) attacks,
or execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 19.10
firefox - 73.0+build3-0ubuntu0.19.10.1
Ubuntu 18.04 LTS
firefox - 73.0+build3-0ubuntu0.18.04.1
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-2020-6796
o CVE-2020-6798
o CVE-2020-6800
o CVE-2020-6801
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