CVE-2016-2820

Description

The Firefox Health Reports (aka FHR or about:healthreport) feature in Mozilla Firefox before 46.0 does not properly restrict the origin of events, which makes it easier for remote attackers to modify sharing preferences by leveraging access to the remote-report IFRAME element.

Category

4.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.42%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory gentoo.org Vendor Advisory ubuntu.com 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/2016-05/msg00005.html vendor advisory
http://www.securitytracker.com/id/1035692 vdb entry
http://lists.opensuse.org/opensuse-updates/2016-05/msg00038.html vendor advisory
http://www.ubuntu.com/usn/USN-2936-2 vendor advisory
https://security.gentoo.org/glsa/201701-15 vendor advisory
http://www.ubuntu.com/usn/USN-2936-1 vendor advisory
http://www.ubuntu.com/usn/USN-2936-3 vendor advisory
http://www.mozilla.org/security/announce/2016/mfsa2016-48.html vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=870870

Frequently Asked Questions

What is the severity of CVE-2016-2820?
CVE-2016-2820 has been scored as a medium severity vulnerability.
How to fix CVE-2016-2820?
To fix CVE-2016-2820, 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-2016-2820 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-2820 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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