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Ubuntu 21.04 USN-4978-1 Moderate: Firefox Denial Of Service Exploits

ubuntu
Calendar Grey June 2, 2021
Dist Ubuntu Esm H88
Several vulnerabilities found in Firefox may result in system crashes or unauthorized code execution through harmful 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 security issue software update firefox ubuntu browser exploit

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 21.04: firefox 89.0+build2-0ubuntu0.21.04.1 Ubuntu 20.10: firefox 89.0+build2-0ubuntu0.20.10.1 Ubuntu 20.04 LTS: firefox 89.0+build2-0ubuntu0.20.04.2 Ubuntu 18.04 LTS: firefox 89.0+build2-0ubuntu0.18.04.2 After a standard system update you need to restart Firefox to make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-4978-1

CVE-2021-29959, CVE-2021-29960, CVE-2021-29961, CVE-2021-29966,

CVE-2021-29967

June 02, 2021

Topics%20covered

Topics Covered

security advisory denial of service security issue software update firefox ubuntu browser exploit

Package Information

https://launchpad.net/ubuntu/+source/firefox/89.0+build2-0ubuntu0.21.04.1 https://launchpad.net/ubuntu/+source/firefox/89.0+build2-0ubuntu0.20.10.1 https://launchpad.net/ubuntu/+source/firefox/89.0+build2-0ubuntu0.20.04.2 https://launchpad.net/ubuntu/+source/firefox/89.0+build2-0ubuntu0.18.04.2

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