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AUSCERT External Security Bulletin Redistribution
ESB-2020.2596
USN-4443-1: Firefox vulnerabilities
30 July 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
Reduced Security -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-15659 CVE-2020-15658 CVE-2020-15656
CVE-2020-15655 CVE-2020-15654 CVE-2020-15653
CVE-2020-15652 CVE-2020-6514 CVE-2020-6463
Reference: ESB-2020.2580
ESB-2020.2579
ESB-2020.2578
ESB-2020.2569
Original Bulletin:
https://usn.ubuntu.com/4443-1/
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USN-4443-1: Firefox vulnerabilities
29 July 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, obtain sensitive
information, bypass iframe sandbox restrictions, confuse the user, or
execute arbitrary code. (CVE-2020-6463, CVE-2020-6514, CVE-2020-15652,
CVE-2020-15653, CVE-2020-15654, CVE-2020-15656, CVE-2020-15658,
CVE-2020-15659)
It was discovered that redirected HTTP requests which are observed or
modified through a web extension could bypass existing CORS checks. If a
user were tricked in to installing a specially crafted extension, an
attacker could potentially exploit this to obtain sensitive information
across origins. (CVE-2020-15655)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o firefox - 79.0+build1-0ubuntu0.20.04.1
Ubuntu 18.04
o firefox - 79.0+build1-0ubuntu0.18.04.1
Ubuntu 16.04
o firefox - 79.0+build1-0ubuntu0.16.04.2
After a standard system update you need to restart Firefox to make
all the necessary changes.
References
o CVE-2020-15652
o CVE-2020-15653
o CVE-2020-15654
o CVE-2020-15658
o CVE-2020-15659
o CVE-2020-6463
o CVE-2020-15656
o CVE-2020-15655
o CVE-2020-6514
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