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Ubuntu 20.04 LTS USN-6143-3 Critical: Firefox Minor Issues Resolved

USN-6143-2 caused some minor regressions in Firefox.. =========================================================================Ubuntu Security Notice USN-6143-3 June 21, 2023 firefox regressions ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS Summary: USN-6143-2 caused some minor regressions in Firefox. Software Description: - firefox: Mozilla Open Source web browser Details: USN-6143-1 fixed vulnerabilities and USN-6143-2 fixed minor regressions 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-2023-34414, CVE-2023-34416, CVE-2023-34417) Jun Kokatsu discovered that Firefox did not properly validate site-isolated process for a document loaded from a data: URL that was the result of a redirect, leading to an open redirect attack. An attacker could possibly use this issue to perform phishing attacks. (CVE-2023-34415) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: firefox 114.0.2+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-6143-3 https://ubuntu.com/security/notices/USN-6143-1 https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/2024513 Package Information: https://launchpad.net/ubuntu/+source/firefox/114.0.2+build1-0ubuntu0.20.04.1 . Ubuntu Security Notice USN-6143-4 addresses slight discrepancies in Firefoxfollowing the latest updates for users.. Firefox Updates, Ubuntu Advisories, Open Source Software. . Severity: Important. LinuxSecurity.com Team

Jun 21, 2023 •Important Ubuntu