vulnerability

MFSA2019-07 Firefox: Security vulnerabilities fixed in Firefox 66 (CVE-2019-9802)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
Mar 19, 2019
Added
Mar 20, 2019
Modified
Aug 11, 2025

Description

If a Sandbox content process is compromised, it can initiate an FTP download which will then use a child process to render the downloaded data. The downloaded data can then be passed to the Chrome process with an arbitrary file length supplied by an attacker, bypassing sandbox protections and allow for a potential memory read of adjacent data from the privileged Chrome process, which may include sensitive data. This vulnerability affects Firefox < 66.

Solution

mozilla-firefox-upgrade-66_0
Title
NEW

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