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USN-6992-2: Firefox regressions

23 September 2024

USN-6992-1 caused some minor regressions in Firefox.

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Releases

Packages

  • firefox - Mozilla Open Source web browser

Details

USN-6992-1 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-2024-8382,
CVE-2024-8383, CVE-2024-8386, CVE-2024-8387, CVE-2024-8389)

Nils Bars discovered that Firefox contained a type confusion vulnerability
when performing certain property name lookups. An attacker could
potentially exploit this issue to cause a denial of service, or execute
arbitrary code. (CVE-2024-8381)

It was discovered that Firefox did not properly manage memory during
garbage collection. An attacker could potentially exploit this issue to
cause a denial of service, or execute arbitrary code. (CVE-2024-8384)

Seunghyun Lee discovered that Firefox contained a type confusion
vulnerability when handling certain ArrayTypes. An attacker could
potentially exploit this issue to cause a denial of service, or execute
arbitrary code. (CVE-2024-8385)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 20.04

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