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Ubuntu 20.04 LTS USN-6456-1 Critical: Firefox Security Threats

ubuntu
Calendar Grey October 30, 2023
Dist Ubuntu Esm H88
Various vulnerabilities addressed in Firefox for Ubuntu 20.04 LTS to avert attacks and service interruptions.
Several security issues were fixed in Firefox.

Summary

Several security issues were fixed in Firefox.

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, obtain sensitive

information across domains, or execute arbitrary code. (CVE-2023-5722,

CVE-2023-5724, CVE-2023-5728, CVE-2023-5729, CVE-2023-5730, CVE-2023-5731)

Kelsey Gilbert discovered that Firefox did not properly manage certain

browser prompts and dialogs due to an insufficient activation-delay. An

attacker could potentially exploit this issue to perform clickjacking.

(CVE-2023-5721)

Daniel Veditz discovered that Firefox did not properly validate a cookie

containing invalid characters. An attacker could potentially exploit this

issue to cause a denial of service. (CVE-2023-5723)

Shaheen Fazim discovered that Firefox did not properly validate the URLs

open by inst...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service security issue security fix Ubuntu firefox

Update Instructions

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

Ubuntu 20.04 LTS:
  firefox                         119.0+build2-0ubuntu0.20.04.1

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

References

https://ubuntu.com/security/notices/USN-6456-1

CVE-2023-5721, CVE-2023-5722, CVE-2023-5723, CVE-2023-5724,

CVE-2023-5725, CVE-2023-5728, CVE-2023-5729, CVE-2023-5730,

CVE-2023-5731

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6456-1

Topics%20covered

Topics Covered

security advisory denial of service security issue security fix Ubuntu firefox

Package Information

https://launchpad.net/ubuntu/+source/firefox/119.0+build2-0ubuntu0.20.04.1

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