CVE-2015-4490 - Black and tan Monitor

Description

The nsCSPHostSrc::permits function in dom/security/nsCSPUtils.cpp in Mozilla Firefox before 40.0 does not implement the Content Security Policy Level 2 exceptions for the blob data and filesystem URL schemes during wildcard source-expression matching which might make it easier for remote attackers to conduct cross-site scripting (XSS) attacks by leveraging unexpected policy-enforcement behavior.

Reference

http://www.mozilla.org/security/announce/2015/mfsa2015-91.html https://bugzilla.mozilla.org/show_bug.cgi?id=1086999 http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.html http://www.ubuntu.com/usn/USN-2702-2 http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.html http://www.ubuntu.com/usn/USN-2702-1 http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html https://security.gentoo.org/glsa/201605-06 http://www.ubuntu.com/usn/USN-2702-3 http://www.securitytracker.com/id/1033247