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Ubuntu 21.10 USN-5284-1 Critical: Firefox Denial Of Service Threat

ubuntu
Calendar Grey February 14, 2022
Dist Ubuntu Esm H88
Uncover the vital security vulnerabilities of Firefox on Ubuntu and find out how to defend against them through prompt updates.
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:

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, bypass security

restrictions, obtain sensitive information, or execute arbitrary code.

(CVE-2022-0511, CVE-2022-22755, CVE-2022-22759, CVE-2022-22760,

CVE-2022-22761, CVE-2022-22764)

It was discovered that extensions of a particular type could auto-update

themselves and bypass the prompt that requests permissions. If a user

were tricked into installing a specially crafted extension, an attacker

could potentially exploit this to bypass security restrictions.

(CVE-2022-22754)

It was discovered that dragging and dropping an image into a folder could

result in it being marked as executable. If a user wer...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service firefox update instructions ubuntu software threat malicious website

Update Instructions

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

Ubuntu 21.10:
   firefox                         97.0+build2-0ubuntu0.21.10.1

Ubuntu 20.04 LTS:
   firefox                         97.0+build2-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
   firefox                         97.0+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-5284-1

CVE-2022-0511, CVE-2022-22754, CVE-2022-22755, CVE-2022-22756,

CVE-2022-22757, CVE-2022-22759, CVE-2022-22760, CVE-2022-22761,

CVE-2022-22764

Severity
critical
Lowest
Low
Medium
High
Critical

February 14, 2022

Topics%20covered

Topics Covered

security advisory denial of service firefox update instructions ubuntu software threat malicious website

Package Information

https://launchpad.net/ubuntu/+source/firefox/97.0+build2-0ubuntu0.21.10.1
https://launchpad.net/ubuntu/+source/firefox/97.0+build2-0ubuntu0.20.04.1
https://launchpad.net/ubuntu/+source/firefox/97.0+build2-0ubuntu0.18.04.1

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