RHSA-2021:2261HighCVSS 8.8

Red Hat Security Advisory: thunderbird security update

Published
June 7, 2021
Last Modified
November 6, 2026

🔗 CVE IDs covered (3)

CVE-2021-29967 →CVE-2021-29956 →CVE-2021-29957 →

📋 Description

CVE-2021-29956 — Mozilla: Thunderbird stored OpenPGP secret keys without master password protection CVE-2021-29957 — Mozilla: Partial protection of inline OpenPGP message not indicated CVE-2021-29967 — Mozilla: Memory safety bugs fixed in Firefox 89 and Firefox ESR 78.11

🎯 Affected products11

  • Red Hat Enterprise Linux AppStream EUS (v. 8.2)
  • thunderbird-0:78.11.0-1.el8_2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
  • thunderbird-0:78.11.0-1.el8_2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
  • thunderbird-0:78.11.0-1.el8_2.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
  • thunderbird-0:78.11.0-1.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
  • thunderbird-debuginfo-0:78.11.0-1.el8_2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
  • thunderbird-debuginfo-0:78.11.0-1.el8_2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
  • thunderbird-debuginfo-0:78.11.0-1.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
  • thunderbird-debugsource-0:78.11.0-1.el8_2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
  • thunderbird-debugsource-0:78.11.0-1.el8_2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
  • thunderbird-debugsource-0:78.11.0-1.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)

✅ 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 All running instances of Thunderbird must be restarted for the update to take effect.

🔗 References (6)