RHSA-2022:0817CriticalCVSS 9.8

Red Hat Security Advisory: firefox security update

Published
March 10, 2022
Last Modified
August 6, 2026

🔗 CVE IDs covered (10)

CVE-2022-26485 →CVE-2022-26486 →CVE-2022-25235 →CVE-2022-25236 →CVE-2022-26381 →CVE-2022-26386 →CVE-2022-25315 →CVE-2022-26383 →CVE-2022-26384 →CVE-2022-26387 →

📋 Description

CVE-2022-25235 — expat: Malformed 2- and 3-byte UTF-8 sequences can lead to arbitrary code execution CVE-2022-25236 — expat: Namespace-separator characters in "xmlns[:prefix]" attribute values can lead to arbitrary code execution CVE-2022-25315 — expat: Integer overflow in storeRawNames() CVE-2022-26381 — Mozilla: Use-after-free in text reflows CVE-2022-26383 — Mozilla: Browser window spoof using fullscreen mode CVE-2022-26384 — Mozilla: iframe allow-scripts sandbox bypass CVE-2022-26386 — Mozilla: Temporary files downloaded to /tmp and accessible by other local users CVE-2022-26387 — Mozilla: Time-of-check time-of-use bug when verifying add-on signatures CVE-2022-26485 — Mozilla: Use-after-free in XSLT parameter processing CVE-2022-26486 — Mozilla: Use-after-free in WebGPU IPC Framework

🎯 Affected products14

  • Red Hat Enterprise Linux AppStream EUS (v.8.4)
  • firefox-0:91.7.0-3.el8_4.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.8.4)
  • firefox-0:91.7.0-3.el8_4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.8.4)
  • firefox-0:91.7.0-3.el8_4.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.8.4)
  • firefox-0:91.7.0-3.el8_4.src as a component of Red Hat Enterprise Linux AppStream EUS (v.8.4)
  • firefox-0:91.7.0-3.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.8.4)
  • firefox-debuginfo-0:91.7.0-3.el8_4.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.8.4)
  • firefox-debuginfo-0:91.7.0-3.el8_4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.8.4)
  • firefox-debuginfo-0:91.7.0-3.el8_4.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.8.4)
  • firefox-debuginfo-0:91.7.0-3.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.8.4)
  • firefox-debugsource-0:91.7.0-3.el8_4.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.8.4)
  • firefox-debugsource-0:91.7.0-3.el8_4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.8.4)
  • firefox-debugsource-0:91.7.0-3.el8_4.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.8.4)
  • firefox-debugsource-0:91.7.0-3.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.8.4)

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect. Workaround: There is no known mitigation other than restricting applications using the expat library from processing untrusted XML content. Please update the affected packages as soon as possible.

🔗 References (13)