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Ubuntu: (Multiple Advisories) (CVE-2017-7834): Firefox regression

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Ubuntu: (Multiple Advisories) (CVE-2017-7834): Firefox regression

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
11/14/2017
Created
07/25/2018
Added
11/16/2017
Modified
08/17/2018

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)

  • ubuntu-upgrade-firefox

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