Ubuntu 2917-3: Firefox regressions

    Date19 Apr 2016
    CategoryUbuntu
    42
    Posted ByLinuxSecurity Advisories
    USN-2917-1 introduced several regressions in Firefox.
    ==========================================================================
    Ubuntu Security Notice USN-2917-3
    April 19, 2016
    
    firefox regressions
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 15.10
    - Ubuntu 14.04 LTS
    - Ubuntu 12.04 LTS
    
    Summary:
    
    USN-2917-1 introduced several regressions in Firefox.
    
    Software Description:
    - firefox: Mozilla Open Source web browser
    
    Details:
    
    USN-2917-1 fixed vulnerabilities in Firefox. This update caused several
    web compatibility regressions.
    
    This update fixes the problem.
    
    We apologize for the inconvenience.
    
    Original advisory details:
    
     Francis Gabriel discovered a buffer overflow during ASN.1 decoding in NSS.
     If a user were tricked in to opening a specially crafted website, an
     attacker could potentially exploit this to cause a denial of service via
     application crash, or execute arbitrary code with the privileges of the
     user invoking Firefox. (CVE-2016-1950)
     
     Bob Clary, Christoph Diehl, Christian Holler, Andrew McCreight, Daniel
     Holbert, Jesse Ruderman, Randell Jesup, Carsten Book, Gian-Carlo Pascutto,
     Tyson Smith, Andrea Marchesini, and Jukka Jylänki 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 service via application crash, or execute arbitrary code
     with the privileges of the user invoking Firefox. (CVE-2016-1952,
     CVE-2016-1953)
     
     Nicolas Golubovic discovered that CSP violation reports can be used to
     overwrite local files. If a user were tricked in to opening a specially
     crafted website with addon signing disabled and unpacked addons installed,
     an attacker could potentially exploit this to gain additional privileges.
     (CVE-2016-1954)
     
     Muneaki Nishimura discovered that CSP violation reports contained full
     paths for cross-origin iframe navigations. An attacker could potentially
     exploit this to steal confidential data. (CVE-2016-1955)
     
     Ucha Gobejishvili discovered that performing certain WebGL operations
     resulted in memory resource exhaustion with some Intel GPUs, requiring
     a reboot. If a user were tricked in to opening a specially crafted
     website, an attacker could potentially exploit this to cause a denial
     of service. (CVE-2016-1956)
     
     Jose Martinez and Romina Santillan discovered a memory leak in
     libstagefright during MPEG4 video file processing in some circumstances.
     If a user were tricked in to opening a specially crafted website, an
     attacker could potentially exploit this to cause a denial of service via
     memory exhaustion. (CVE-2016-1957)
     
     Abdulrahman Alqabandi discovered that the addressbar could be blank or
     filled with page defined content in some circumstances. If a user were
     tricked in to opening a specially crafted website, an attacker could
     potentially exploit this to conduct URL spoofing attacks. (CVE-2016-1958)
     
     Looben Yang discovered an out-of-bounds read in Service Worker Manager. If
     a user were tricked in to opening a specially crafted website, an attacker
     could potentially exploit this to cause a denial of service via
     application crash, or execute arbitrary code with the privileges of the
     user invoking Firefox. (CVE-2016-1959)
     
     A use-after-free was discovered in the HTML5 string parser. If a user were
     tricked in to opening a specially crafted website, an attacker could
     potentially exploit this to cause a denial of service via application
     crash, or execute arbitrary code with the privileges of the user invoking
     Firefox. (CVE-2016-1960)
     
     A use-after-free was discovered in the SetBody function of HTMLDocument.
     If a user were tricked in to opening a specially crafted website, an
     attacker could potentially exploit this to cause a denial of service via
     application crash, or execute arbitrary code with the privileges of the
     user invoking Firefox. (CVE-2016-1961)
     
     Dominique Hazaël-Massieux discovered a use-after-free when using multiple
     WebRTC data channels. If a user were tricked in to opening a specially
     crafted website, an attacker could potentially exploit this to cause a
     denial of service via application crash, or execute arbitrary code with
     the privileges of the user invoking Firefox. (CVE-2016-1962)
     
     It was discovered that Firefox crashes when local files are modified
     whilst being read by the FileReader API. If a user were tricked in to
     opening a specially crafted website, an attacker could potentially exploit
     this to execute arbitrary code with the privileges of the user invoking
     Firefox. (CVE-2016-1963)
     
     Nicolas Grégoire discovered a use-after-free during XML transformations.
     If a user were tricked in to opening a specially crafted website, an
     attacker could potentially exploit this to cause a denial of service via
     application crash, or execute arbitrary code with the privileges of the
     user invoking Firefox. (CVE-2016-1964)
     
     Tsubasa Iinuma discovered a mechanism to cause the addressbar to display
     an incorrect URL, using history navigations and the Location protocol
     property. If a user were tricked in to opening a specially crafted
     website, an attacker could potentially exploit this to conduct URL
     spoofing attacks. (CVE-2016-1965)
     
     A memory corruption issues was discovered in the NPAPI subsystem. If
     a user were tricked in to opening a specially crafted website with a
     malicious plugin installed, an attacker could potentially exploit this
     to cause a denial of service via application crash, or execute arbitrary
     code with the privileges of the user invoking Firefox. (CVE-2016-1966)
     
     Jordi Chancel discovered a same-origin-policy bypass when using
     performance.getEntries and history navigation with session restore. If
     a user were tricked in to opening a specially crafted website, an attacker
     could potentially exploit this to steal confidential data. (CVE-2016-1967)
     
     Luke Li discovered a buffer overflow during Brotli decompression in some
     circumstances. If a user were tricked in to opening a specially crafted
     website, an attacker could potentially exploit this to cause a denial of
     service via application crash, or execute arbitrary code with the
     privileges of the user invoking Firefox. (CVE-2016-1968)
     
     Ronald Crane discovered a use-after-free in GetStaticInstance in WebRTC.
     If a user were tricked in to opening a specially crafted website, an
     attacker could potentially exploit this to cause a denial of service via
     application crash, or execute arbitrary code with the privileges of the
     user invoking Firefox. (CVE-2016-1973)
     
     Ronald Crane discovered an out-of-bounds read following a failed
     allocation in the HTML parser in some circumstances. If a user were
     tricked in to opening a specially crafted website, an attacker could
     potentially exploit this to cause a denial of service via application
     crash, or execute arbitrary code with the privileges of the user invoking
     Firefox. (CVE-2016-1974)
     
     Holger Fuhrmannek, Tyson Smith and Holger Fuhrmannek reported multiple
     memory safety issues in the Graphite 2 library. 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, or
     execute arbitrary code with the privileges of the user invoking Firefox.
     (CVE-2016-1977, CVE-2016-2790, CVE-2016-2791, CVE-2016-2792,
     CVE-2016-2793, CVE-2016-2794, CVE-2016-2795, CVE-2016-2796, CVE-2016-2797,
     CVE-2016-2798, CVE-2016-2799, CVE-2016-2800, CVE-2016-2801, CVE-2016-2802)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 15.10:
      firefox                         45.0.2+build1-0ubuntu0.15.10.1
    
    Ubuntu 14.04 LTS:
      firefox                         45.0.2+build1-0ubuntu0.14.04.1
    
    Ubuntu 12.04 LTS:
      firefox                         45.0.2+build1-0ubuntu0.12.04.1
    
    After a standard system update you need to restart Firefox to make
    all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-2917-3
      http://www.ubuntu.com/usn/usn-2917-1
      https://launchpad.net/bugs/1572169
    
    Package Information:
      https://launchpad.net/ubuntu/+source/firefox/45.0.2+build1-0ubuntu0.15.10.1
      https://launchpad.net/ubuntu/+source/firefox/45.0.2+build1-0ubuntu0.14.04.1
      https://launchpad.net/ubuntu/+source/firefox/45.0.2+build1-0ubuntu0.12.04.1
    
    
    
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