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CVE-2015-4490

Published: 11 August 2015

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.

Priority

Medium

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
upstream
Released (40.0)
precise
Released (40.0+build4-0ubuntu0.12.04.1)
trusty Does not exist
(trusty was released [40.0+build4-0ubuntu0.14.04.1])
vivid
Released (40.0+build4-0ubuntu0.15.04.1)