CVE-2021-23994
thunderbirdVulnerabilityCVSS 8.8Patched
No public exploitation has been reported so far. A fixed version is available (see the table below).
Recommended action: Update to the fixed version listed for your distribution using the native package manager.
Severity metrics
CVSS 3.1 : 8.8 HIGH · CVSS 2.0 : 6.8 MEDIUM
Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Vector: AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected & fixed versions by distribution
Versions are the native distribution strings (backport-aware): RHEL/Debian/SUSE backport fixes, so compare with the distro version comparator (dpkg / rpm / vercmp), not the upstream version.
| Distribution | Package | Affected | Fixed version | Status |
|---|---|---|---|---|
| Arch | thunderbird | 78.9.1-3 | 78.10.0-1 | fixed |
| Arch | firefox | 87.0-2 | 88.0-1 | fixed |
| Debian:11 | firefox-esr | - | 78.10.0esr-1 | fixed |
| Debian:12 | firefox-esr | - | 78.10.0esr-1 | fixed |
| Debian:13 | firefox-esr | - | 78.10.0esr-1 | fixed |
| Debian:14 | firefox-esr | - | 78.10.0esr-1 | fixed |
| Debian:9 | firefox-esr | - | 78.10.0esr-1~deb9u1 | fixed |
| Debian:10 | firefox-esr | - | 78.10.0esr-1~deb10u1 | fixed |
| Debian:11 | thunderbird | - | 1:78.10.0-1 | fixed |
| Debian:12 | thunderbird | - | 1:78.10.0-1 | fixed |
| Debian:13 | thunderbird | - | 1:78.10.0-1 | fixed |
| Debian:14 | thunderbird | - | 1:78.10.0-1 | fixed |
| Debian:9 | thunderbird | - | 1:78.10.0-1~deb9u1 | fixed |
| Debian:10 | thunderbird | - | 1:78.10.0-1~deb10u1 | fixed |
| Ubuntu:16.04:LTS | firefox | - | 88.0+build2-0ubuntu0.16.04.1 | fixed |
| Ubuntu:18.04:LTS | firefox | - | 88.0+build2-0ubuntu0.18.04.2 | fixed |
| Ubuntu:20.04:LTS | firefox | - | 88.0+build2-0ubuntu0.20.04.1 | fixed |
| Ubuntu:18.04:LTS | thunderbird | - | 1:78.11.0+build1-0ubuntu0.18.04.2 | fixed |
| Ubuntu:20.04:LTS | thunderbird | - | 1:78.11.0+build1-0ubuntu0.20.04.2 | fixed |
| SUSE:Linux Enterprise Module for Desktop Applications 15 SP2 | MozillaFirefox | - | 78.10.0-8.38.1 | fixed |
| SUSE:HPE Helion OpenStack 8 | MozillaFirefox | - | 78.10.0-112.57.2 | fixed |
| SUSE:OpenStack Cloud 8 | MozillaFirefox | - | 78.10.0-112.57.2 | fixed |
| SUSE:OpenStack Cloud 9 | MozillaFirefox | - | 78.10.0-112.57.2 | fixed |
| SUSE:OpenStack Cloud Crowbar 8 | MozillaFirefox | - | 78.10.0-112.57.2 | fixed |
| SUSE:OpenStack Cloud Crowbar 9 | MozillaFirefox | - | 78.10.0-112.57.2 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | MozillaFirefox | - | 78.10.0-112.57.2 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP4 | MozillaFirefox | - | 78.10.0-112.57.2 | fixed |
| SUSE:Linux Enterprise Software Development Kit 12 SP5 | MozillaFirefox | - | 78.10.0-112.57.2 | fixed |
| SUSE:Linux Enterprise Server 12 SP2-BCL | MozillaFirefox | - | 78.10.0-112.57.2 | fixed |
| SUSE:Linux Enterprise Server 12 SP3-LTSS | MozillaFirefox | - | 78.10.0-112.57.2 | fixed |
| SUSE:Linux Enterprise Server 12 SP3-BCL | MozillaFirefox | - | 78.10.0-112.57.2 | fixed |
| SUSE:Linux Enterprise Server 12 SP4-LTSS | MozillaFirefox | - | 78.10.0-112.57.2 | fixed |
| SUSE:Linux Enterprise Server 12 SP5 | MozillaFirefox | - | 78.10.0-112.57.2 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | MozillaFirefox | - | 78.10.0-112.57.2 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15-ESPOS | MozillaFirefox | - | 78.10.0-3.139.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15-LTSS | MozillaFirefox | - | 78.10.0-3.139.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS | MozillaFirefox | - | 78.10.0-3.139.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS | MozillaFirefox | - | 78.10.0-3.139.1 | fixed |
| SUSE:Linux Enterprise Server 15-LTSS | MozillaFirefox | - | 78.10.0-3.139.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP1-BCL | MozillaFirefox | - | 78.10.0-3.139.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP1-LTSS | MozillaFirefox | - | 78.10.0-3.139.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 | MozillaFirefox | - | 78.10.0-3.139.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP1 | MozillaFirefox | - | 78.10.0-3.139.1 | fixed |
| SUSE:Manager Proxy 4.0 | MozillaFirefox | - | 78.10.0-3.139.1 | fixed |
| SUSE:Manager Retail Branch Server 4.0 | MozillaFirefox | - | 78.10.0-3.139.1 | fixed |
| SUSE:Manager Server 4.0 | MozillaFirefox | - | 78.10.0-3.139.1 | fixed |
| SUSE:Enterprise Storage 6 | MozillaFirefox | - | 78.10.0-3.139.1 | fixed |
| SUSE:Linux Enterprise Server 11 SP4-LTSS | MozillaFirefox | - | 78.10.0-78.126.1 | fixed |
| SUSE:Linux Enterprise Workstation Extension 15 SP2 | MozillaThunderbird | - | 78.10.0-8.23.1 | fixed |
| openSUSE:Leap 15.2 | MozillaFirefox | - | 78.10.0-lp152.2.55.1 | fixed |
| openSUSE:Tumbleweed | MozillaFirefox | - | 92.0-1.2 | fixed |
| openSUSE:Leap 15.2 | MozillaThunderbird | - | 78.10.0-lp152.2.41.1 | fixed |
| openSUSE:Tumbleweed | MozillaThunderbird | - | 91.1.1-1.1 | fixed |
| openSUSE:Tumbleweed | firefox-esr | - | 128.5.1-1.1 | fixed |
| Red Hat:enterprise_linux:8::appstream | firefox | - | 0:78.10.0-1.el8_3 | fixed |
| Red Hat:rhel_eus:8.2::appstream | firefox | - | 0:78.10.0-1.el8_2 | fixed |
| Red Hat:rhel_eus:8.1::appstream | firefox | - | 0:78.10.0-1.el8_1 | fixed |
| Red Hat:enterprise_linux:7::client | firefox | - | 0:78.10.0-1.el7_9 | fixed |
| Red Hat:enterprise_linux:7::server | firefox | - | 0:78.10.0-1.el7_9 | fixed |
| Red Hat:enterprise_linux:7::workstation | firefox | - | 0:78.10.0-1.el7_9 | fixed |
| Red Hat:enterprise_linux:7::client | thunderbird | - | 0:78.10.0-1.el7_9 | fixed |
| Red Hat:enterprise_linux:7::server | thunderbird | - | 0:78.10.0-1.el7_9 | fixed |
| Red Hat:enterprise_linux:7::workstation | thunderbird | - | 0:78.10.0-1.el7_9 | fixed |
| Red Hat:rhel_eus:8.1::appstream | thunderbird | - | 0:78.10.0-1.el8_1 | fixed |
| Red Hat:rhel_eus:8.2::appstream | thunderbird | - | 0:78.10.0-1.el8_2 | fixed |
| Red Hat:enterprise_linux:8::appstream | thunderbird | - | 0:78.10.0-1.el8_3 | fixed |