--- title: 'USN-3645-1: Firefox vulnerabilities | Ubuntu security notices' description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/notices/USN-3645-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-3645-1 --- # USN-3645-1: Firefox vulnerabilities Publication date 11 May 2018 Overview Firefox could be made to crash or run programs as your login if it opened a malicious website. Releases [18.04 LTS](https://ubuntu.com/security/notices?release=bionic) [17.10](https://ubuntu.com/security/notices?release=artful) [16.04 LTS](https://ubuntu.com/security/notices?release=xenial) [14.04 LTS](https://ubuntu.com/security/notices?release=trusty) --- Open side navigation ## Packages * [firefox](https://ubuntu.com/security/cves?package=firefox) - Mozilla Open Source web browser ## 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 via application crash, bypass same-origin restrictions, conduct cross-site scripting (XSS) attacks, install lightweight themes without user interaction, spoof the filename in the downloads panel, or execute arbitrary code. ([CVE-2018-5150](https://ubuntu.com/security/CVE-2018-5150), [CVE-2018-5151](https://ubuntu.com/security/CVE-2018-5151), [CVE-2018-5153](https://ubuntu.com/security/CVE-2018-5153), [CVE-2018-5154](https://ubuntu.com/security/CVE-2018-5154), [CVE-2018-5155](https://ubuntu.com/security/CVE-2018-5155), [CVE-2018-5157](https://ubuntu.com/security/CVE-2018-5157), [CVE-2018-5158](https://ubuntu.com/security/CVE-2018-5158), [CVE-2018-5159](https://ubuntu.com/security/CVE-2018-5159), [CVE-2018-5160](https://ubuntu.com/security/CVE-2018-5160), [CVE-2018-5163](https://ubuntu.com/security/CVE-2018-5163), --- Show more ## Update instructions After a standard system update you need to restart Firefox to make all the necessary changes. [Learn more about how to get the fixes.](https://ubuntu.com/security/cves/about#security) The problem can be corrected by updating your system to the following package versions: | Ubuntu Release | Package Version | | --- | --- | | 18.04 LTS bionic | [firefox](https://launchpad.net/ubuntu/+source/firefox) –  [60.0+build2-0ubuntu1](https://launchpad.net/ubuntu/+source/firefox/60.0+build2-0ubuntu1) | | | | 17.10 artful | [firefox](https://launchpad.net/ubuntu/+source/firefox) –  [60.0+build2-0ubuntu0.17.10.1](https://launchpad.net/ubuntu/+source/firefox/60.0+build2-0ubuntu0.17.10.1) | | | | 16.04 LTS xenial | [firefox](https://launchpad.net/ubuntu/+source/firefox) –  [60.0+build2-0ubuntu0.16.04.1](https://launchpad.net/ubuntu/+source/firefox/60.0+build2-0ubuntu0.16.04.1) | | | | 14.04 LTS trusty | [firefox](https://launchpad.net/ubuntu/+source/firefox) –  [60.0+build2-0ubuntu0.14.04.1](https://launchpad.net/ubuntu/+source/firefox/60.0+build2-0ubuntu0.14.04.1) | | | --- ### Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. [Get Ubuntu Pro](https://ubuntu.com/pro) ## References * [CVE-2018-5182](https://ubuntu.com/security/CVE-2018-5182) * [CVE-2018-5181](https://ubuntu.com/security/CVE-2018-5181) * [CVE-2018-5180](https://ubuntu.com/security/CVE-2018-5180) * [CVE-2018-5177](https://ubuntu.com/security/CVE-2018-5177) * [CVE-2018-5176](https://ubuntu.com/security/CVE-2018-5176) * [CVE-2018-5175](https://ubuntu.com/security/CVE-2018-5175) * [CVE-2018-5173](https://ubuntu.com/security/CVE-2018-5173) * [CVE-2018-5172](https://ubuntu.com/security/CVE-2018-5172) * [CVE-2018-5169](https://ubuntu.com/security/CVE-2018-5169) * [CVE-2018-5168](https://ubuntu.com/security/CVE-2018-5168) --- Show 14 more references ## Related notices * [USN-3688-1](https://ubuntu.com/security/notices/USN-3688-1) * [USN-3660-1](https://ubuntu.com/security/notices/USN-3660-1)