CVE-2015-7215
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…
Does this matter?
Lower severity and a low EPSS score (2.53%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
- EPSS
- 2.53% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- fedoraproject/fedora · opensuse/leap · opensuse/opensuse · mozilla/firefox
- Source
- security@mozilla.org
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174083.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174253.html
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00104.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00007.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00008.html
- http://www.mozilla.org/security/announce/2015/mfsa2015-140.htmlVendor Advisory
- http://www.securityfocus.com/bid/79280
- http://www.securitytracker.com/id/1034426
- http://www.ubuntu.com/usn/USN-2833-1
- https://bugzilla.mozilla.org/show_bug.cgi?id=1160890
- https://github.com/whatwg/html/issues/164
- https://github.com/whatwg/html/pull/166
- https://security.gentoo.org/glsa/201512-10
- https://www.w3.org/Bugs/Public/show_bug.cgi?id=28961Vendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174083.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174253.html
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00104.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00007.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00008.html
- http://www.mozilla.org/security/announce/2015/mfsa2015-140.htmlVendor Advisory
- http://www.securityfocus.com/bid/79280
- http://www.securitytracker.com/id/1034426
- http://www.ubuntu.com/usn/USN-2833-1
- https://bugzilla.mozilla.org/show_bug.cgi?id=1160890
- https://github.com/whatwg/html/issues/164
- https://github.com/whatwg/html/pull/166
- https://security.gentoo.org/glsa/201512-10
- https://www.w3.org/Bugs/Public/show_bug.cgi?id=28961Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.