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AUSCERT External Security Bulletin Redistribution
ESB-2020.2956.2
USN-4474-1: Firefox vulnerabilities
4 September 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
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-2020-15670 CVE-2020-15668 CVE-2020-15666
CVE-2020-15665 CVE-2020-15664 CVE-2020-12401
CVE-2020-12400 CVE-2020-6829
Reference: ESB-2020.2940
ESB-2020.2939
ESB-2020.2913
ESB-2020.2912
Original Bulletin:
https://usn.ubuntu.com/4474-1/
Revision History: September 4 2020: Vendor released further patches to fix regressions
August 28 2020: Initial Release
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USN-4474-1: Firefox vulnerabilities
26 August 2020
Firefox could be made to crash or run programs as your login if it
opened a malicious website.
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Packages
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, trick the user
in to installing a malicious extension, spoof the URL bar, leak sensitive
information between origins, or execute arbitrary code. (CVE-2020-15664,
CVE-2020-15665, CVE-2020-15666, CVE-2020-15670)
It was discovered that NSS incorrectly handled certain signatures.
An attacker could possibly use this issue to expose sensitive information.
(CVE-2020-12400, CVE-2020-12401, CVE-2020-6829)
A data race was discovered when importing certificate information in to
the trust store. An attacker could potentially exploit this to cause an
unspecified impact. (CVE-2020-15668)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o firefox - 80.0+build2-0ubuntu0.20.04.1
Ubuntu 18.04
o firefox - 80.0+build2-0ubuntu0.18.04.1
Ubuntu 16.04
o firefox - 80.0+build2-0ubuntu0.16.04.1
After a standard system update you need to restart Firefox to make
all the necessary changes.
References
o CVE-2020-15666
o CVE-2020-15665
o CVE-2020-15668
o CVE-2020-15670
o CVE-2020-12400
o CVE-2020-12401
o CVE-2020-15664
o CVE-2020-6829
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USN-4474-2: Firefox regressions
03 September 2020
USN-4474-1 caused some minor regressions in Firefox.
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Packages
o firefox - Mozilla Open Source web browser
Details
USN-4474-1 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, trick the user
in to installing a malicious extension, spoof the URL bar, leak sensitive
information between origins, or execute arbitrary code. (CVE-2020-15664,
CVE-2020-15665, CVE-2020-15666, CVE-2020-15670)
It was discovered that NSS incorrectly handled certain signatures.
An attacker could possibly use this issue to expose sensitive information.
(CVE-2020-12400, CVE-2020-12401, CVE-2020-6829)
A data race was discovered when importing certificate information in to
the trust store. An attacker could potentially exploit this to cause an
unspecified impact. (CVE-2020-15668)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o firefox - 80.0.1+build1-0ubuntu0.20.04.1
Ubuntu 18.04
o firefox - 80.0.1+build1-0ubuntu0.18.04.1
Ubuntu 16.04
o firefox - 80.0.1+build1-0ubuntu0.16.04.1
After a standard system update you need to restart Firefox to make
all the necessary changes.
References
o https://launchpad.net/bugs/1893021
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