Mozilla Firefox before 31.0 does not properly restrict use of drag-and-drop events to spoof customization events, which allows remote attackers to alter the placement of UI icons via crafted JavaScript code that is encountered during (1) page, (2) panel, or (3) toolbar customization.

Affected: Ubuntu:14.04:LTS: firefox

Christian Holler, David Keeler, Byron Campen, Gary Kwong, Jesse Ruderman, Andrew McCreight, Alon Zakai, Bobby Holley, Jonathan Watt, Shu-yu Guo, Steve Fink, Terrence Cole, Gijs Kruitbosch and Cătălin Badea 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-2014-1547, CVE-2014-1548)

Atte Kettunen discovered a buffer overflow when interacting with WebAudio buffers. 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-2014-1549)

Atte Kettunen discovered a use-after-free in WebAudio. 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-2014-1550)

David Chan and Gijs Kruitbosch discovered that web content could spoof UI customization events in some circumstances, resulting in a limited ability to move UI icons. (CVE-2014-1561)

Jethro Beekman discovered a use-after-free when the FireOnStateChange event is triggered in some circumstances. An attacker could potentially exploit this to cause a denial of service via application crash or execute arbitrary code with the priviliges of the user invoking F…