Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 543
Alerts This Week
Warning Icon 1 543

Ubuntu 21.04 USN-5107-1 Critical: Firefox Denial Of Service

ubuntu
Calendar Grey October 7, 2021
Dist Ubuntu Esm H88
Significant security vulnerabilities found in Firefox for Ubuntu, follow these update guidelines to mitigate risks and address threats.
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, spoof another

origin, or execute arbitrary code.

Topics%20covered

Topics Covered

security advisory denial of service critical arbitrary code execution firefox update instructions ubuntu

Update Instructions

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

Ubuntu 21.04:
  firefox                         93.0+build1-0ubuntu0.21.04.1

Ubuntu 20.04 LTS:
  firefox                         93.0+build1-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
  firefox                         93.0+build1-0ubuntu0.18.04.1

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

References

https://ubuntu.com/security/notices/USN-5107-1

CVE-2021-32810, CVE-2021-38496, CVE-2021-38497, CVE-2021-38498,

CVE-2021-38499, CVE-2021-38500, CVE-2021-38501

Severity
critical
Lowest
Low
Medium
High
Critical

October 07, 2021

Topics%20covered

Topics Covered

security advisory denial of service critical arbitrary code execution firefox update instructions ubuntu

Package Information

https://launchpad.net/ubuntu/+source/firefox/93.0+build1-0ubuntu0.21.04.1
https://launchpad.net/ubuntu/+source/firefox/93.0+build1-0ubuntu0.20.04.1
https://launchpad.net/ubuntu/+source/firefox/93.0+build1-0ubuntu0.18.04.1

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.