USN-2936-3: Firefox regression Ubuntu Security Notice USN-2936-3 18th May, 2016 firefox regression A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.04 LTS Ubuntu 15.10 Ubuntu 14.04 LTS Ubuntu 12.04 LTS Summary USN-2936-1 introduced a regression in Firefox. Software description firefox – Mozilla Open Source web browser Details USN-2936-1 fixed vulnerabilities in Firefox. The update caused an issuewhere a device update POST request was sent every time about:preferences#syncwas shown. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Christian Holler, Tyson Smith, Phil Ringalda, Gary Kwong, Jesse Ruderman, Mats Palmgren, Carsten Book, Boris Zbarsky, David Bolter, Randell Jesup, Andrew McCreight, and Steve Fink discovered multiple memory safety issues 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 [ more… ]