RHSA-2020:2037 — Security Advisory
Red Hat Security Advisory: firefox security update
Severity
CriticalRed Hat Product Security
Products
Official CSAF product identity
Published · May 6, 2020
Updated · November 2, 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 68.8.0 ESR.
Security Fix(es):
-
Mozilla: Use-after-free during worker shutdown (CVE-2020-12387)
-
Mozilla: Memory safety bugs fixed in Firefox 76 and Firefox ESR 68.8 (CVE-2020-12395)
-
Mozilla: Buffer overflow in SCTP chunk input validation (CVE-2020-6831)
-
Mozilla: Arbitrary local file access with 'Copy as cURL' (CVE-2020-12392)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.