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MFSA2017-24 Firefox: Security vulnerabilities fixed in Firefox 57 (CVE-2017-7834)

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MFSA2017-24 Firefox: Security vulnerabilities fixed in Firefox 57 (CVE-2017-7834)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
11/14/2017
Created
07/25/2018
Added
11/15/2017
Modified
06/26/2018

Description

A "data:" URL loaded in a new tab did not inherit the Content Security Policy (CSP) of the original page, allowing for bypasses of the policy including the execution of JavaScript. In prior versions when "data:" documents also inherited the context of the original page this would allow for potential cross-site scripting (XSS) attacks. This vulnerability affects Firefox < 57.

Solution(s)

  • mozilla-firefox-upgrade-57_0

References

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