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Ubuntu 20.10 USN-4717-2 Critical: Firefox Memory Corruption

ubuntu
Calendar Grey February 1, 2021
Dist Ubuntu Esm H88
Several security flaws in Firefox may result in unexpected shutdowns or unapproved activities when harmful sites are visited.
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 software update memory corruption firefox ubuntu

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10: firefox 85.0+build1-0ubuntu0.20.10.1 Ubuntu 20.04 LTS: firefox 85.0+build1-0ubuntu0.20.04.1 Ubuntu 18.04 LTS: firefox 85.0+build1-0ubuntu0.18.04.1 Ubuntu 16.04 LTS: firefox 85.0+build1-0ubuntu0.16.04.1 After a standard system update you need to restart Firefox to make all the necessary changes.

References

CVE-2021-23953, CVE-2021-23954, CVE-2021-23955, CVE-2021-23956,

CVE-2021-23958, CVE-2021-23960, CVE-2021-23961, CVE-2021-23962,

CVE-2021-23963, CVE-2021-23964, CVE-2021-23965

Severity
critical
Lowest
Low
Medium
High
Critical

February 01, 2021

Topics%20covered

Topics Covered

security advisory denial of service critical software update memory corruption firefox ubuntu

Package Information

https://launchpad.net/ubuntu/+source/firefox/85.0+build1-0ubuntu0.20.10.1 https://launchpad.net/ubuntu/+source/firefox/85.0+build1-0ubuntu0.20.04.1 https://launchpad.net/ubuntu/+source/firefox/85.0+build1-0ubuntu0.18.04.1 https://launchpad.net/ubuntu/+source/firefox/85.0+build1-0ubuntu0.16.04.1

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