Rapid7 Vulnerability & Exploit Database

MFSA2018-26 Firefox: Security vulnerabilities fixed in Firefox 63 (CVE-2018-12393)

Back to Search

MFSA2018-26 Firefox: Security vulnerabilities fixed in Firefox 63 (CVE-2018-12393)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
10/23/2018
Created
03/19/2019
Added
10/24/2018
Modified
03/04/2019

Description

A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could result in allocating a buffer too small for the conversion. This leads to a possible out-of-bounds write. *Note: 64-bit builds are not vulnerable to this issue.*. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.

Solution(s)

  • mozilla-firefox-upgrade-63_0

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;