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Ubuntu 21.10 USN-5321-2 Critical: Firefox Code Execution Threat

ubuntu
Calendar Grey March 17, 2022
Dist Ubuntu Esm H88
Ubuntu Security Notice USN-5322-1 highlights urgent vulnerabilities in LibreOffice that may lead to data breaches and system disruptions.
Firefox could be made to crash or run programs as your login if it opened a malicious website.

Summary

Firefox could be made to crash or run programs as your login if it

opened a malicious website.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

USN-5321-1 fixed vulnerabilities in Firefox. The update didn't include

arm64 because of a regression. This update provides the corresponding

update for arm64.

This update also removes Yandex and Mail.ru as optional search providers

in the drop-down search menu.

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, spoof the browser

UI, bypass security restrictions, obtain sensitive information, or execute

arbitrary code. (CVE-2022-0843, CVE-2022-26381, CVE-2022-26382,

CVE-2022-26383, CVE-2022-26384, CVE-2022-26385)

A TOCTOU bug was discovered when verifying addon signatures during

install. A local attacker ...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical issue code execution DoS Ubuntu firefox web browser

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 21.10:
   firefox                         98.0.1+build2-0ubuntu0.21.10.1

Ubuntu 20.04 LTS:
   firefox                         98.0.1+build2-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
   firefox                         98.0.1+build2-0ubuntu0.18.04.1

After a standard system update you need to restart Firefox to make
all the necessary changes.

References

https://ubuntu.com/security/notices/USN-5321-2

https://ubuntu.com/security/notices/USN-5321-1

CVE-2022-0843, CVE-2022-26381, CVE-2022-26382, CVE-2022-26383,

CVE-2022-26384, CVE-2022-26385, CVE-2022-26387

Severity
critical
Lowest
Low
Medium
High
Critical

March 17, 2022

Topics%20covered

Topics Covered

security advisory critical issue code execution DoS Ubuntu firefox web browser

Package Information

https://launchpad.net/ubuntu/+source/firefox/98.0.1+build2-0ubuntu0.21.10.1
https://launchpad.net/ubuntu/+source/firefox/98.0.1+build2-0ubuntu0.20.04.1
https://launchpad.net/ubuntu/+source/firefox/98.0.1+build2-0ubuntu0.18.04.1

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