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MFSA2017-21 Firefox: Security vulnerabilities fixed in Firefox 56 (CVE-2017-7821)

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MFSA2017-21 Firefox: Security vulnerabilities fixed in Firefox 56 (CVE-2017-7821)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
06/11/2018
Created
07/25/2018
Added
07/12/2018
Modified
07/12/2018

Description

A vulnerability where WebExtensions can download and attempt to open a file of some non-executable file types. This can be triggered without specific user interaction for the file download and open actions. This could be used to trigger known vulnerabilities in the programs that handle those document types. This vulnerability affects Firefox < 56.

Solution(s)

  • mozilla-firefox-upgrade-56_0

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