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MFSA2015-91 Firefox: Mozilla Content Security Policy allows for asterisk wildcards in violation of CSP specification (CVE-2015-4490)

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MFSA2015-91 Firefox: Mozilla Content Security Policy allows for asterisk wildcards in violation of CSP specification (CVE-2015-4490)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
08/15/2015
Created
07/25/2018
Added
08/17/2015
Modified
04/05/2017

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.

Solution(s)

  • mozilla-firefox-upgrade-40_0

References

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