RHSA-2018:2884 — Security Advisory
Red Hat Security Advisory: firefox security update
Severity
CriticalRed Hat Product Security
Products
Official CSAF product identity
Published · October 9, 2018
Updated · June 27, 2026
Topic
An update for firefox is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
This update upgrades Firefox to version 60.2.2 ESR.
Security Fix(es):
-
Mozilla: type confusion in JavaScript (CVE-2018-12386)
-
Mozilla: stack out-of-bounds read in Array.prototype.push (CVE-2018-12387)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Red Hat would like to thank the Mozilla project for reporting these issues. The upstream acknowledges Niklas Baumstark, Samuel Groß, and Bruno Keith as the original reporters, via Beyond Security's SecuriTeam Secure Disclosure program.