RHSA-2023:4075 — Security Advisory

Red Hat Security Advisory: firefox security update

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Severity

Important

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · July 13, 2023

Updated · November 22, 2025

Topic

An update for firefox is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions.

Red Hat Product Security has rated this update as having a security impact of Important. 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 102.13.0 ESR.

Security Fix(es):

  • Mozilla: Use-after-free in WebRTC certificate generation (CVE-2023-37201)

  • Mozilla: Potential use-after-free from compartment mismatch in SpiderMonkey (CVE-2023-37202)

  • Mozilla: Memory safety bugs fixed in Firefox 115, Firefox ESR 102.13, and Thunderbird 102.13 (CVE-2023-37211)

  • Mozilla: Fullscreen notification obscured (CVE-2023-37207)

  • Mozilla: Lack of warning when opening Diagcab files (CVE-2023-37208)

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.

Related CVEs

RHSA-2023:4075 — Red Hat Security Advisory: firefox security update | PulseLinux