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========================================================================== Ubuntu Security Notice USN-2917-1 March 09, 2016
firefox vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 15.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS
Summary:
Firefox could be made to crash or run programs as your login if it opened a malicious website.
Software Description: - firefox: Mozilla Open Source web browser
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+build2-0ubuntu0.15.10.1
Ubuntu 14.04 LTS: firefox 45.0+build2-0ubuntu0.14.04.1
Ubuntu 12.04 LTS: firefox 45.0+build2-0ubuntu0.12.04.1
After a standard system update you need to restart Firefox to make all the necessary changes.
References: http://www.ubuntu.com/usn/usn-2917-1 CVE-2016-1950, CVE-2016-1952, CVE-2016-1953, CVE-2016-1954, CVE-2016-1955, CVE-2016-1956, CVE-2016-1957, CVE-2016-1958, CVE-2016-1959, CVE-2016-1960, CVE-2016-1961, CVE-2016-1962, CVE-2016-1963, CVE-2016-1964, CVE-2016-1965, CVE-2016-1966, CVE-2016-1967, CVE-2016-1968, CVE-2016-1973, CVE-2016-1974, 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
Package Information: https://launchpad.net/ubuntu/+source/firefox/45.0+build2-0ubuntu0.15.10.1 https://launchpad.net/ubuntu/+source/firefox/45.0+build2-0ubuntu0.14.04.1 https://launchpad.net/ubuntu/+source/firefox/45.0+build2-0ubuntu0.12.04.1
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