[USN-6966-2] Firefox regressions

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==========================================================================
Ubuntu Security Notice USN-6966-2
August 21, 2024

firefox regressions
==========================================================================

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

- Ubuntu 20.04 LTS

Summary:

USN-6966-1 caused some minor regressions in Firefox.

Software Description:
- firefox: Mozilla Open Source web browser

Details:

USN-6966-1 fixed vulnerabilities in Firefox. The update introduced
several minor regressions. This update fixes the problem.

We apologize for the inconvenience.

Original advisory 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-2024-7518,
CVE-2024-7521, CVE-2024-7524, CVE-2024-7526, CVE-2024-7527, CVE-2024-7528,
CVE-2024-7529, CVE-2024-7530, CVE-2024-7531)

It was discovered that Firefox did not properly manage certain memory
operations when processing graphics shared memory. An attacker could
potentially exploit this issue to escape the sandbox. (CVE-2024-7519)

Nan Wang discovered that Firefox did not properly handle type check in
WebAssembly. An attacker could potentially exploit this issue to execute
arbitrary code. (CVE-2024-7520)

Irvan Kurniawan discovered that Firefox did not properly check an
attribute value in the editor component, leading to an out-of-bounds read
vulnerability. An attacker could possibly use this issue to cause a denial
of service or expose sensitive information. (CVE-2024-7522)

Rob Wu discovered that Firefox did not properly check permissions when
creating a StreamFilter. An attacker could possibly use this issue to
modify response body of requests on any site using a web extension.
(CVE-2024-7525)

Update instructions:

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

Ubuntu 20.04 LTS
firefox 129.0.2+build1-0ubuntu0.20.04.1

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

References:
https://ubuntu.com/security/notices/USN-6966-2
https://ubuntu.com/security/notices/USN-6966-1
https://launchpad.net/bugs/2077485

Package Information:
https://launchpad.net/ubuntu/+source/firefox/129.0.2+build1-0ubuntu0.20.04.1