USN-5816-2: Firefox regressions
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Ubuntu Security Notice USN-5816-2
February 06, 2023
firefox regressions
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
Summary:
USN-5816-1 caused some minor regressions in Firefox.
Software Description:
- 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)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
firefox 109.0.1+build1-0ubuntu0.20.04.2
Ubuntu 18.04 LTS:
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:
https://ubuntu.com/security/notices/USN-5816-2
https://ubuntu.com/security/notices/USN-5816-1
https://launchpad.net/bugs/2006075
Package Information:
https://launchpad.net/ubuntu/+source/firefox/109.0.1+build1-0ubuntu0.20.04.2
https://launchpad.net/ubuntu/+source/firefox/109.0.1+build1-0ubuntu0.18.04.2
A Firefox regressions update has been released for Ubuntu Linux 18.04 LTS and 20.04 LTS.
