Advisory Published

USN-6201-1: Firefox vulnerabilities

First published: Wed Jul 05 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-2023-37201, CVE-2023-37202, CVE-2023-37205, CVE-2023-37207, CVE-2023-37209, CVE-2023-37210, CVE-2023-37211, CVE-2023-37212) Martin Hostettler discovered that Firefox did not properly block storage of all cookies when configured. An attacker could potentially exploits this issue to store tracking data without permission in localstorage. (CVE-2023-3482) Paul Nickerson discovered that Firefox did have insufficient validation in the Drag and Drop API. If a user were tricked into creating a shortcut to local system files, an attacker could execute arbitrary code. (CVE-2023-37203) Irvan Kurniawan discovered that Firefox did not properly manage fullscreen notifications using an option element having an expensive computational function. An attacker could potentially exploit this issue to perform spoofing attacks. (CVE-2023-37204) Ameen Basha M K discovered that Firefox did not properly validate symlinks in the FileSystem API. If a user were tricked into uploading a symlinked file to a malicious website, an attacker could obtain sensitive information. (CVE-2023-37206) Puf discovered that Firefox did not properly provide warning when opening Diagcab files. If a user were tricked into opening a malicicous Diagcab file, an attacker could execute arbitrary code. (CVE-2023-37208)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/firefox<115.0+build2-0ubuntu0.20.04.3
115.0+build2-0ubuntu0.20.04.3
Ubuntu Ubuntu=20.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-6201-1?

    The severity of USN-6201-1 is not specified in the provided information.

  • How can an attacker exploit the vulnerabilities in USN-6201-1?

    An attacker can potentially exploit the vulnerabilities in USN-6201-1 to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code.

  • What software is affected by USN-6201-1?

    The Firefox browser version 115.0+build2-0ubuntu0.20.04.3 on Ubuntu 20.04 is affected by USN-6201-1.

  • How do I fix the vulnerabilities in USN-6201-1?

    To fix the vulnerabilities in USN-6201-1, update your Firefox browser to version 115.0+build2-0ubuntu0.20.04.3 or later.

  • Where can I find more information about the vulnerabilities in USN-6201-1?

    You can find more information about the vulnerabilities in USN-6201-1 at the following references: [Link 1](https://ubuntu.com/security/CVE-2023-37205), [Link 2](https://ubuntu.com/security/CVE-2023-37206), [Link 3](https://ubuntu.com/security/CVE-2023-37209).

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