========================================================================== Ubuntu Security Notice USN-3801-2 November 23, 2018
firefox regressions ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: USN-3801-1 caused some minor regressions in Firefox. Software Description: - firefox: Mozilla Open Source web browser Details: USN-3801-1 fixed vulnerabilities in Firefox. The update introduced various minor regressions. This update fixes the problems. We apologize for the inconvenience. Original advisory details: Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, bypass CSP restrictions, spoof the protocol registration notification bar, leak SameSite cookies, bypass mixed content warnings, or execute arbitrary code. (CVE-2018-12388, CVE-2018-12390, CVE-2018-12392, CVE-2018-12393, CVE-2018-12398, CVE-2018-12399, CVE-2018-12401, CVE-2018-12402, CVE-2018-12403) Multiple security issues were discovered with WebExtensions in Firefox. If a user were tricked in to installing a specially crafted extension, an attacker could potentially exploit these to bypass domain restrictions, gain additional privileges, or run content scripts in local pages without permission. (CVE-2018-12395, CVE-2018-12396, CVE-2018-12397) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10: firefox 63.0.3+build1-0ubuntu0.18.10.1 Ubuntu 18.04 LTS: firefox 63.0.3+build1-0ubuntu0.18.04.1 Ubuntu 16.04 LTS: firefox 63.0.3+build1-0ubuntu0.16.04.1 Ubuntu 14.04 LTS: firefox 63.0.3+build1-0ubuntu0.14.04.1 After a standard system update you need to restart Firefox to make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3801-2 https://usn.ubuntu.com/usn/usn-3801-1 https://launchpad.net/bugs/1804881 Package Information: https://launchpad.net/ubuntu/+source/firefox/63.0.3+build1-0ubuntu0.18.10.1 https://launchpad.net/ubuntu/+source/firefox/63.0.3+build1-0ubuntu0.18.04.1 https://launchpad.net/ubuntu/+source/firefox/63.0.3+build1-0ubuntu0.16.04.1 https://launchpad.net/ubuntu/+source/firefox/63.0.3+build1-0ubuntu0.14.04.1
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