CVE-2016-2811

Name of the Vulnerable Software and Affected Versions Mozilla Firefox versions prior to 46.0

Description The issue is related to a use-after-free vulnerability in the ServiceWorkerInfo class of the Service Worker subsystem. This vulnerability can be exploited by a remote attacker to execute arbitrary code via vectors related to the BeginReading method. The vulnerability is associated with the use of memory after it has been freed.

Recommendations For versions prior to 46.0, update to version 46.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the Service Worker subsystem until a patch is available. Avoid using the BeginReading method in affected versions until the issue is resolved.