========================================================================== Ubuntu Security Notice USN-3391-3 August 17, 2017
firefox regression ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 17.04 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: USN-3391-1 introduced a regression in Firefox. Software Description: - firefox: Mozilla Open Source web browser Details: USN-3391-1 fixed vulnerabilities in Firefox. The update introduced a performance regression with WebExtensions. 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 in to opening a specially crafted website, an attacker could potentially exploit these to conduct cross-site scripting (XSS) attacks, bypass sandbox restrictions, obtain sensitive information, spoof the origin of modal alerts, bypass same origin restrictions, read uninitialized memory, cause a denial of service via program crash or hang, or execute arbitrary code. (CVE-2017-7753, CVE-2017-7779, CVE-2017-7780, CVE-2017-7781, CVE-2017-7783, CVE-2017-7784, CVE-2017-7785, CVE-2017-7786, CVE-2017-7787, CVE-2017-7788, CVE-2017-7789, CVE-2017-7791, CVE-2017-7792, CVE-2017-7794, CVE-2017-7797, CVE-2017-7798, CVE-2017-7799, CVE-2017-7800, CVE-2017-7801, CVE-2017-7802, CVE-2017-7803, CVE-2017-7806, CVE-2017-7807, CVE-2017-7808, CVE-2017-7809) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.04: firefox 55.0.2+build1-0ubuntu0.17.04.1 Ubuntu 16.04 LTS: firefox 55.0.2+build1-0ubuntu0.16.04.1 Ubuntu 14.04 LTS: firefox 55.0.2+build1-0ubuntu0.14.04.1 After a standard system update you need to restart Firefox to make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3391-3 https://www.ubuntu.com/usn/usn-3391-1 https://launchpad.net/bugs/1710987 Package Information: https://launchpad.net/ubuntu/+source/firefox/55.0.2+build1-0ubuntu0.17.04.1 https://launchpad.net/ubuntu/+source/firefox/55.0.2+build1-0ubuntu0.16.04.1 https://launchpad.net/ubuntu/+source/firefox/55.0.2+build1-0ubuntu0.14.04.1
signature.asc
Description: OpenPGP digital signature
-- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce
