CVE-2015-2733

Name of the Vulnerable Software and Affected Versions Mozilla Firefox versions prior to 39.0 Firefox ESR versions prior to 31.8 Firefox ESR versions prior to 38.1

Description The issue is related to a use-after-free vulnerability in the CanonicalizeXPCOMParticipant function. This vulnerability can be exploited by a remote attacker to execute arbitrary code by manipulating the XMLHttpRequest function, specifically by attaching an XMLHttpRequest object to a dedicated worker.

Recommendations For Mozilla Firefox versions prior to 39.0, update to version 39.0 or later. For Firefox ESR versions prior to 31.8, update to version 31.8 or later. For Firefox ESR versions prior to 38.1, update to version 38.1 or later.