CVE-2015-7215 Information

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.

Reference

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.html 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=28961