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High RLSA-2022:1705 6 CVEs

Important: firefox security update

Published May 4, 2022 · Updated Feb 5, 2026

Summary

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 91.9.0 ESR.

Security Fix(es):

* Mozilla: Bypassing permission prompt in nested browsing contexts (CVE-2022-29909)

* Mozilla: iframe Sandbox bypass (CVE-2022-29911)

* Mozilla: Fullscreen notification bypass using popups (CVE-2022-29914)

* Mozilla: Leaking browser history with CSS variables (CVE-2022-29916)

* Mozilla: Memory safety bugs fixed in Firefox 100 and Firefox ESR 91.9 (CVE-2022-29917)

* Mozilla: Reader mode bypassed SameSite cookies (CVE-2022-29912)

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.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 8 firefox 0:91.9.0-1.el8_5

Vulnerabilities 6

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2081468
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2081469
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2081470
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2081471
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2081472
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2081473