Description
When importing a revoked key that specified key compromise as the revocation reason, Thunderbird did not update the existing copy of the key that was not yet revoked, and the existing key was kept as non-revoked. Revocation statements that used another revocation reason, or that didn't specify a revocation reason, were unaffected. This vulnerability affects Thunderbird < 91.8.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Thunderbird | unspecified – < 91.8 | 91.8 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | thunderbird | 1:91.8.0-1 | — |
| Debian 13 | thunderbird | 1:91.8.0-1 | — |
| Debian 12 | thunderbird | 1:91.8.0-1 | — |
| Debian 11 | thunderbird | 1:91.8.0-1~deb11u1 | DSA-5118-1 |
| Debian 10 | thunderbird | 1:91.8.0-1~deb10u1 | DSA-5118-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 9 | thunderbird | 1:91.8.0-1~deb9u1 | DLA-2978-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | thunderbird | 1:91.8.1+build1-0ubuntu0.20.04.1 | USN-5393-1 |
| Ubuntu 18.04 LTS | thunderbird | 1:91.8.1+build1-0ubuntu0.18.04.1 | USN-5393-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | thunderbird | 91.8.0-1.el8_5 | RHSA-2022:1301 |
| RHEL 7 | thunderbird | 91.8.0-1.el7_9 | RHSA-2022:1302 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.4 EUS | thunderbird | 91.8.0-1.el8_4 | RHSA-2022:1305 |
| RHEL 8.2 EUS | thunderbird | 91.8.0-1.el8_2 | RHSA-2022:1326 |
| RHEL 8.1 E4S | thunderbird | 91.8.0-1.el8_1 | RHSA-2022:1303 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | thunderbird | 91.8.0-1.el8_5.alma | ALSA-2022:1301 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | thunderbird | 91.8.0-1.el8_5 | RLSA-2022:1301 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | MozillaThunderbird | 91.8.0-150200.8.65.1 | SUSE-SU-2022:1176-1 |
| SLES 15 SP3 | MozillaThunderbird | 91.8.0-150200.8.65.1 | SUSE-SU-2022:1176-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | MozillaThunderbird | 91.8.0-150200.8.65.1 | SUSE-SU-2022:1176-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.23 | thunderbird | 91.8.0-r0 | — |
| Alpine v3.22 | thunderbird | 91.8.0-r0 | — |
| Alpine v3.21 | thunderbird | 91.8.0-r0 | — |
| Alpine v3.20 | thunderbird | 91.8.0-r0 | — |
| Alpine v3.19 | thunderbird | 91.8.0-r0 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.18 | thunderbird | 91.8.0-r0 | — |
| Alpine v3.17 | thunderbird | 91.8.0-r0 | — |
| Alpine v3.16 | thunderbird | 91.8.0-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | thunderbird | 91.8.0-1.amzn2.0.1 | ALAS2-2022-1789 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | thunderbird | 91.8.0-1.0.1.el8_5 | ELSA-2022-1301 |
| Oracle Linux 7 | thunderbird | 91.8.0-1.0.1.el7_9 | ELSA-2022-1302 |
Advisories 16
- ALSA-2022:1301 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2022:1302 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-5393-1 thunderbird vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-5118-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2978-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2022:1301 Important: thunderbird security update Rocky Linux Security Advisories · Feb 5, 2026
- RHSA-2022:1326 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2022:1303 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2022:1305 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2022:1301 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- WID-SEC-2022-0482 Mozilla Firefox, Mozilla Firefox ESR und Thunderbird: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 2, 2025
- WID-SEC-2022-1335 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 6, 2025
- SUSE-SU-2022:1176-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · May 2, 2025
- ALAS2-2022-1789 Important: thunderbird security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Apr 27, 2022
- ELSA-2022-1302 Important: thunderbird security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 12, 2022
- ELSA-2022-1301 Important: thunderbird security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Apr 11, 2022