USN-6010-2: Firefox regressions
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Ubuntu Security Notice USN-6010-2
April 18, 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-6010-1 caused some minor regressions in Firefox.
Software Description:
- firefox: Mozilla Open Source web browser
Details:
USN-6010-1 fixed vulnerabilities in Firefox. The update introduced
several 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 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-2023-29537,
CVE-2023-29540, CVE-2023-29543, CVE-2023-29544, CVE-2023-29547,
CVE-2023-29548, CVE-2023-29549, CVE-2023-29550, CVE-2023-29551)
Irvan Kurniawan discovered that Firefox did not properly manage fullscreen
notifications using a combination of window.open, fullscreen requests,
window.name assignments, and setInterval calls. An attacker could
potentially exploit this issue to perform spoofing attacks. (CVE-2023-29533)
Lukas Bernhard discovered that Firefox did not properly manage memory
when doing Garbage Collector compaction. An attacker could potentially
exploits this issue to cause a denial of service. (CVE-2023-29535)
Zx from qriousec discovered that Firefox did not properly validate the
address to free a pointer provided to the memory manager. An attacker could
potentially exploits this issue to cause a denial of service.
(CVE-2023-29536)
Alexis aka zoracon discovered that Firefox did not properly validate the
URI received by the WebExtension during a load request. An attacker could
potentially exploits this to obtain sensitive information. (CVE-2023-29538)
Trung Pham discovered that Firefox did not properly validate the filename
directive in the Content-Disposition header. An attacker could possibly
exploit this to perform reflected file download attacks potentially
tricking users to install malware. (CVE-2023-29539)
Ameen Basha M K discovered that Firefox did not properly validate downloads
of files ending in .desktop. An attacker could potentially exploits this
issue to execute arbitrary code. (CVE-2023-29541)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
firefox 112.0.1+build1-0ubuntu0.20.04.1
Ubuntu 18.04 LTS:
firefox 112.0.1+build1-0ubuntu0.18.04.1
After a standard system update you need to restart Firefox to make all the
necessary changes.
References:
https://ubuntu.com/security/notices/USN-6010-2
https://ubuntu.com/security/notices/USN-6010-1
https://launchpad.net/bugs/2016835
Package Information:
https://launchpad.net/ubuntu/+source/firefox/112.0.1+build1-0ubuntu0.20.04.1
https://launchpad.net/ubuntu/+source/firefox/112.0.1+build1-0ubuntu0.18.04.1
--msijpj4tcvasremc
A Firefox regression update has been released for Ubuntu Linux 18.04 LTS and 20.04 LTS.
