CVE-2015-4516

Description

Mozilla Firefox before 41.0 allows remote attackers to bypass certain ECMAScript 5 (aka ES5) API protection mechanisms and modify immutable properties, and consequently execute arbitrary JavaScript code with chrome privileges, via a crafted web page that does not use ES5 APIs.

Category

9.3
CVSS
Severity: Critical
CVSS 2.0 •
EPSS 2.03% Top 20%
Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory mozilla.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00005.html vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=904886
http://www.ubuntu.com/usn/USN-2743-4 vendor advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.ubuntu.com/usn/USN-2743-3 vendor advisory
http://www.securityfocus.com/bid/76815 vdb entry
http://www.ubuntu.com/usn/USN-2743-2 vendor advisory
http://www.securitytracker.com/id/1033640 vdb entry
http://www.mozilla.org/security/announce/2015/mfsa2015-109.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00000.html vendor advisory
http://www.ubuntu.com/usn/USN-2743-1 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-4516?
CVE-2015-4516 has been scored as a critical severity vulnerability.
How to fix CVE-2015-4516?
To fix CVE-2015-4516, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-4516 being actively exploited in the wild?
It is possible that CVE-2015-4516 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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