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AUSCERT External Security Bulletin Redistribution
ESB-2020.0107.2
USN-4234-1: Firefox vulnerabilities
31 January 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
Access Confidential Data -- Remote with User Interaction
Reduced Security -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2019-17026 CVE-2019-17025 CVE-2019-17024
CVE-2019-17023 CVE-2019-17022 CVE-2019-17020
CVE-2019-17017 CVE-2019-17016
Reference: ESB-2020.0078
ESB-2020.0055
ESB-2020.0054
Original Bulletin:
https://usn.ubuntu.com/4234-1/
https://usn.ubuntu.com/4234-2/
Comment: This bulletin contains two (2) Ubuntu security advisories.
Revision History: January 31 2020: Fixes to minor regressions from previous update.
January 10 2020: Initial Release
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USN-4234-1: Firefox vulnerabilities
9 January 2020
firefox vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 19.10
o Ubuntu 19.04
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, obtain sensitive information, bypass
Content Security Policy (CSP) restrictions, 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 - 72.0.1+build1-0ubuntu0.19.10.1
Ubuntu 19.04
firefox - 72.0.1+build1-0ubuntu0.19.04.1
Ubuntu 18.04 LTS
firefox - 72.0.1+build1-0ubuntu0.18.04.1
Ubuntu 16.04 LTS
firefox - 72.0.1+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-2019-17016
o CVE-2019-17017
o CVE-2019-17020
o CVE-2019-17022
o CVE-2019-17023
o CVE-2019-17024
o CVE-2019-17025
o CVE-2019-17026
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USN-4234-2: Firefox regressions
30 January 2020
firefox regressions
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 19.10
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Summary
USN-4234-1 caused some minor regressions in Firefox.
Software Description
o firefox - Mozilla Open Source web browser
Details
USN-4234-1 fixed vulnerabilities in Firefox. The update introduced various
minor regressions. This update fixes the problems.
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, obtain sensitive information, bypass
Content Security Policy (CSP) restrictions, 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 - 72.0.2+build1-0ubuntu0.19.10.1
Ubuntu 18.04 LTS
firefox - 72.0.2+build1-0ubuntu0.18.04.1
Ubuntu 16.04 LTS
firefox - 72.0.2+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 USN-4234-1
o LP: 1856707
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