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MFSA2017-21 Firefox: Security vulnerabilities fixed in Firefox 56 (CVE-2017-7813)

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MFSA2017-21 Firefox: Security vulnerabilities fixed in Firefox 56 (CVE-2017-7813)

Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:P)
Published
06/11/2018
Created
07/25/2018
Added
07/12/2018
Modified
07/12/2018

Description

Inside the JavaScript parser, a cast of an integer to a narrower type can result in data read from outside the buffer being parsed. This usually results in a non-exploitable crash, but can leak a limited amount of information from memory if it matches JavaScript identifier syntax. This vulnerability affects Firefox < 56.

Solution(s)

  • mozilla-firefox-upgrade-56_0

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