Advisory Published

USN-6074-1: Firefox vulnerabilities

First published: Mon May 15 2023(Updated: )

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-2023-32205, CVE-2023-32207, CVE-2023-32210, CVE-2023-32211, CVE-2023-32212, CVE-2023-32213, CVE-2023-32215, CVE-2023-32216) Irvan Kurniawan discovered that Firefox did not properly manage memory when using RLBox Expat driver. An attacker could potentially exploits this issue to cause a denial of service. (CVE-2023-32206) Anne van Kesteren discovered that Firefox did not properly validate the import() call in service workers. An attacker could potentially exploits this to obtain sensitive information. (CVE-2023-32208) Sam Ezeh discovered that Firefox did not properly handle certain favicon image files. If a user were tricked into opening a malicicous favicon file, an attacker could cause a denial of service. (CVE-2023-32209)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/firefox<113.0+build2-0ubuntu0.20.04.1
113.0+build2-0ubuntu0.20.04.1
=20.04
All of
ubuntu/firefox<113.0+build2-0ubuntu0.18.04.1
113.0+build2-0ubuntu0.18.04.1
=18.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-6074-1?

    The severity of USN-6074-1 is high.

  • How can an attacker exploit USN-6074-1?

    An attacker can potentially exploit USN-6074-1 by tricking a user into opening a specially crafted website.

  • What are the potential impacts of USN-6074-1?

    USN-6074-1 can potentially result in denial of service, obtaining sensitive information across domains, or executing arbitrary code.

  • Which versions of Firefox are affected by USN-6074-1?

    Firefox version 113.0+build2-0ubuntu0.20.04.1 and 113.0+build2-0ubuntu0.18.04.1 are affected by USN-6074-1.

  • How can I remedy USN-6074-1?

    To remedy USN-6074-1, update Firefox to version 113.0+build2-0ubuntu0.20.04.1 or 113.0+build2-0ubuntu0.18.04.1 depending on your Ubuntu version.

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