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Ubuntu 21.10: 5131-1 Critical: Firefox Denial of Service Exploits

ubuntu
Calendar Grey November 3, 2021
Dist Ubuntu Esm H88
The latest Ubuntu Security Announcement USN-5131-1 highlights security flaws in Firefox which could be leveraged by malicious websites.
Firefox could be made to crash or run programs as your login if it opened a malicious website.

Summary

Topics%20covered

Topics Covered

security advisory denial of service critical exploit firefox ubuntu malicious website

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 21.10: firefox 94.0+build3-0ubuntu0.21.10.1 Ubuntu 21.04: firefox 94.0+build3-0ubuntu0.21.04.1 Ubuntu 20.04 LTS: firefox 94.0+build3-0ubuntu0.20.04.1 Ubuntu 18.04 LTS: firefox 94.0+build3-0ubuntu0.18.04.1 After a standard system update you need to restart Firefox to make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-5131-1

CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507,

CVE-2021-38508, CVE-2021-38509

Severity
critical
Lowest
Low
Medium
High
Critical

November 03, 2021

Topics%20covered

Topics Covered

security advisory denial of service critical exploit firefox ubuntu malicious website

Package Information

https://launchpad.net/ubuntu/+source/firefox/94.0+build3-0ubuntu0.21.10.1 https://launchpad.net/ubuntu/+source/firefox/94.0+build3-0ubuntu0.21.04.1 https://launchpad.net/ubuntu/+source/firefox/94.0+build3-0ubuntu0.20.04.1 https://launchpad.net/ubuntu/+source/firefox/94.0+build3-0ubuntu0.18.04.1

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