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.
References (14)
Core 14
Core References
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201512-10
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-updates/2015-12/msg00104.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174253.html
Issue Tracking x_refsource_misc
https://github.com/whatwg/html/issues/164
Issue Tracking x_refsource_misc
https://github.com/whatwg/html/pull/166
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174083.html
Issue Tracking x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1160890
Vendor Advisory x_refsource_misc
https://www.w3.org/Bugs/Public/show_bug.cgi?id=28961
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-updates/2016-02/msg00008.html
Vendor Advisory x_refsource_confirm
http://www.mozilla.org/security/announce/2015/mfsa2015-140.html
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2833-1
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/79280
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-updates/2016-02/msg00007.html
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1034426
Scores
EPSS
0.0044
EPSS Percentile
63.3%
Details
CWE
CWE-200
Status
published
Products (6)
fedoraproject/fedora
22
fedoraproject/fedora
23
mozilla/firefox
< 42.0
opensuse/leap
42.1
opensuse/opensuse
13.1
opensuse/opensuse
13.2
Published
Dec 16, 2015
Tracked Since
Feb 18, 2026