CVE-2015-7215

Description

The importScripts function in the Web Workers API implementation in Mozilla Firefox before 43.0 allows remote attackers to bypass the Same Origin Policy by triggering use of the no-cors mode in the fetch API to attempt resource access that throws an exception, leading to information disclosure after a rethrow.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.16%
Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory mozilla.org Vendor Advisory w3.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1160890
https://security.gentoo.org/glsa/201512-10 vendor advisory
http://lists.opensuse.org/opensuse-updates/2015-12/msg00104.html vendor advisory
https://www.w3.org/Bugs/Public/show_bug.cgi?id=28961 vendor advisory
http://lists.opensuse.org/opensuse-updates/2016-02/msg00008.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174253.html vendor advisory
https://github.com/whatwg/html/issues/164
http://www.mozilla.org/security/announce/2015/mfsa2015-140.html vendor advisory
http://www.ubuntu.com/usn/USN-2833-1 vendor advisory
http://www.securityfocus.com/bid/79280 vdb entry
http://lists.opensuse.org/opensuse-updates/2016-02/msg00007.html vendor advisory
https://github.com/whatwg/html/pull/166
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174083.html vendor advisory
http://www.securitytracker.com/id/1034426 vdb entry

Frequently Asked Questions

What is the severity of CVE-2015-7215?
CVE-2015-7215 has been scored as a medium severity vulnerability.
How to fix CVE-2015-7215?
To fix CVE-2015-7215, 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-2015-7215 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-7215 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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