RHSA-2022:0510 — 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 · February 14, 2022

Updated · November 22, 2025

Topic

An update for firefox is now available for Red Hat Enterprise Linux 8.

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 91.6.0 ESR.

Security Fix(es):

  • Mozilla: Extensions could have bypassed permission confirmation during update (CVE-2022-22754)

  • Mozilla: Memory safety bugs fixed in Firefox 97 and Firefox ESR 91.6 (CVE-2022-22764)

  • Mozilla: Drag and dropping an image could have resulted in the dropped object being an executable (CVE-2022-22756)

  • Mozilla: Sandboxed iframes could have executed script if the parent appended elements (CVE-2022-22759)

  • Mozilla: Cross-Origin responses could be distinguished between script and non-script content-types (CVE-2022-22760)

  • Mozilla: frame-ancestors Content Security Policy directive was not enforced for framed extension pages (CVE-2022-22761)

  • Mozilla: Script Execution during invalid object state (CVE-2022-22763)

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-2022:0510 — Red Hat Security Advisory: firefox security update | PulseLinux