Firefox could be made to crash or run programs as your login if it opened a malicious website.
Jan de Mooij, Christian Holler, Karl Tomlinson, Randell Jesup, Gary Kwong, Jesse Ruderman, JW Wang and David Weir 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-2014-1553, CVE-2014-1554, CVE-2014-1562)
2 September 2014
A security issue affects these releases of Ubuntu and its derivatives:
Firefox could be made to crash or run programs as your login if it opened a malicious website.
Jan de Mooij, Christian Holler, Karl Tomlinson, Randell Jesup, Gary Kwong, Jesse Ruderman, JW Wang and David Weir 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-2014-1553, CVE-2014-1554, CVE-2014-1562)
Abhishek Arya discovered a use-after-free during DOM interactions with SVG. If a user were tricked in to opening a specially crafted page, 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-2014-1563)
Michal Zalewski discovered that memory is not initialized properly during GIF rendering in some circumstances. If a user were tricked in to opening a specially crafted page, an attacker could potentially exploit this to steal confidential information. (CVE-2014-1564)
Holger Fuhrmannek discovered an out-of-bounds read in Web Audio. 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 steal confidential information. (CVE-2014-1565)
A use-after-free was discovered during text layout 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-2014-1567)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart Firefox to make all the necessary changes.
Vulmon