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AUSCERT External Security Bulletin Redistribution
ESB-2023.0663
USN-5816-2: Firefox regressions
6 February 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: Firefox
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2023-23606 CVE-2023-23605 CVE-2023-23604
CVE-2023-23603 CVE-2023-23602 CVE-2023-23601
CVE-2023-23599 CVE-2023-23598 CVE-2023-23597
Original Bulletin:
https://ubuntu.com/security/notices/USN-5816-2
Comment: CVSS (Max): 7.5* CVE-2023-23605 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
* Not all CVSS available when published
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USN-5816-2: Firefox regressions
6 February 2023
USN-5816-1 caused some minor regressions in Firefox.
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and
Universe repositories, and it is free for up to five machines.
Learn more about Ubuntu Pro
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
Packages
o firefox - Mozilla Open Source web browser
Details
USN-5816-1 fixed vulnerabilities in Firefox. The update introduced
several minor regressions. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Niklas Baumstark discovered that a compromised web child process of Firefox
could disable web security opening restrictions, leading to a new child
process being spawned within the file:// context. An attacker could
potentially exploits this to obtain sensitive information. ( CVE-2023-23597 )
Tom Schuster discovered that Firefox was not performing a validation check
on GTK drag data. An attacker could potentially exploits this to obtain
sensitive information. ( CVE-2023-23598 )
Vadim discovered that Firefox was not properly sanitizing a curl command
output when copying a network request from the developer tools panel. An
attacker could potentially exploits this to hide and execute arbitrary
commands. ( CVE-2023-23599 )
Luan Herrera discovered that Firefox was not stopping navigation when
dragging a URL from a cross-origin iframe into the same tab. An attacker
potentially exploits this to spoof the user. ( CVE-2023-23601 )
Dave Vandyke discovered that Firefox did not properly implement CSP policy
when creating a WebSocket in a WebWorker. An attacker who was able to
inject markup into a page otherwise protected by a Content Security Policy
may have been able to inject an executable script. ( CVE-2023-23602 )
Dan Veditz discovered that Firefox did not properly implement CSP policy
on regular expression when using console.log. An attacker potentially
exploits this to exfiltrate data from the browser. ( CVE-2023-23603 )
Nika Layzell discovered that Firefox was not performing a validation check
when parsing a non-system html document via DOMParser::ParseFromSafeString.
An attacker potentially exploits this to bypass web security checks.
( CVE-2023-23604 )
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code. ( CVE-2023-23605 ,
CVE-2023-23606 )
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and
Universe repositories, and it is free for up to five machines.
Learn more about Ubuntu Pro
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o firefox - 109.0.1+build1-0ubuntu0.20.04.2
Ubuntu 18.04
o firefox - 109.0.1+build1-0ubuntu0.18.04.2
After a standard system update you need to restart Firefox to make all the
necessary changes.
References
o https://launchpad.net/bugs/2006075
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