==========================================================================
Ubuntu Security Notice USN-6456-1
October 30, 2023

firefox vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS

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 installed WebExtension. An attacker could potentially exploit this
issue to obtain sensitive information. (CVE-2023-5725)

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

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

Ubuntu 6456-1: Firefox vulnerabilities

October 30, 2023
Several security issues were fixed in Firefox.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS 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 installed WebExtension. An attacker could potentially exploit this issue to obtain sensitive information. (CVE-2023-5725)

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
Ubuntu Security Notice USN-6456-1

Package Information

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

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