CVE-2016-5259: Use After Free
Last updated 24 July 2024
Other sources
Use-after-free vulnerability in the CanonicalizeXPCOMParticipant function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows remote attackers to execute arbitrary code via a script that closes its own Service Worker within a nested sync event loop.
— Launchpad
Affected Software
Event History
Frequently Asked Questions
What is CVE-2016-5259?
CVE-2016-5259 is a use-after-free vulnerability in the CanonicalizeXPCOMParticipant function in Mozilla Firefox.
How does CVE-2016-5259 affect Mozilla Firefox?
CVE-2016-5259 allows remote attackers to execute arbitrary code via a script that closes its own Service Worker within a nested sync event loop.
What is the severity of CVE-2016-5259?
CVE-2016-5259 has a severity rating of 8.8 (High).
How can I fix CVE-2016-5259?
To fix CVE-2016-5259, you should update Mozilla Firefox to version 48.0 or later.
Where can I find more information about CVE-2016-5259?
You can find more information about CVE-2016-5259 on the CVE website (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5259), the Mozilla security advisories (https://www.mozilla.org/en-US/security/advisories/mfsa2016-73/), and the Bugzilla entry (https://bugzilla.mozilla.org/show_bug.cgi?id=1282992).