What is RHSA-2021:2914?

RHSA-2021:2914 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: thunderbird security update

Which CVE IDs does RHSA-2021:2914 cover?

RHSA-2021:2914 covers the following CVE IDs: CVE-2021-29969, CVE-2021-29970, CVE-2021-29976, CVE-2021-30547. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2021:2914?

RHSA-2021:2914 has a CVSS v3 base score of 8.8, published by Red Hat Product Security.

Which products are affected by RHSA-2021:2914?

RHSA-2021:2914 affects 11 products, including: Red Hat Enterprise Linux AppStream EUS (v. 8.2); thunderbird-0:78.12.0-2.el8_2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2); thunderbird-0:78.12.0-2.el8_2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2); thunderbird-0:78.12.0-2.el8_2.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2); thunderbird-0:78.12.0-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2); and others — see the full list on the advisory page.

RHSA-2021:2914HighCVSS 8.8

Red Hat Security Advisory: thunderbird security update

Vendor

Red Hat Product Security

Published

July 27, 2021

Last Modified

November 12, 2026

🔗 CVE IDs covered (4)

CVE-2021-29969 →CVE-2021-29970 →CVE-2021-29976 →CVE-2021-30547 →

📋 Description

CVE-2021-29969 — Mozilla: IMAP server responses sent by a MITM prior to STARTTLS could be processed CVE-2021-29970 — Mozilla: Use-after-free in accessibility features of a document CVE-2021-29976 — Mozilla: Memory safety bugs fixed in Firefox 90 and Firefox ESR 78.12 CVE-2021-30547 — chromium-browser: Out of bounds write in ANGLE

🎯 Affected products11

Red Hat Enterprise Linux AppStream EUS (v. 8.2)
thunderbird-0:78.12.0-2.el8_2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
thunderbird-0:78.12.0-2.el8_2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
thunderbird-0:78.12.0-2.el8_2.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
thunderbird-0:78.12.0-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
thunderbird-debuginfo-0:78.12.0-2.el8_2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
thunderbird-debuginfo-0:78.12.0-2.el8_2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
thunderbird-debuginfo-0:78.12.0-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
thunderbird-debugsource-0:78.12.0-2.el8_2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
thunderbird-debugsource-0:78.12.0-2.el8_2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 8.2)
thunderbird-debugsource-0:78.12.0-2.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.

🔗 CVE IDs covered (4)

📋 Description

🎯 Affected products11

✅ Remediation

🔗 References (7)