Description
A flaw was found in tpm2-tools in versions before 5.1.1 and before 4.3.2. tpm2_import used a fixed AES key for the inner wrapper, potentially allowing a MITM attacker to unwrap the inner portion and reveal the key being imported. The highest threat from this vulnerability is to data confidentiality.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | tpm2-tools | tpm2-tools 5.1.1, tpm2-tools 4.3.2 | — |
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 | tpm2-tools | 5.0-2 | — |
| Debian 13 | tpm2-tools | 5.0-2 | — |
| Debian 12 | tpm2-tools | 5.0-2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | tpm2-tools | No fix yet | — |
| Ubuntu 26.04 LTS | tpm2-tools | No fix yet | — |
| Ubuntu 25.10 | tpm2-tools | No fix yet | — |
| Ubuntu 24.04 LTS | tpm2-tools | No fix yet | — |
| Ubuntu 22.04 LTS | tpm2-tools | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | tpm2-tools | No fix yet | — |
| Ubuntu 16.04 LTS | tpm2-tools | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | tpm2-tools | 4.1.1-5.el8 | RHSA-2021:4413 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | tpm2-tools | 4.1.1-5.el8 | ALSA-2021:4413 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | tpm2-tools | 4.1.1-5.el8 | RLSA-2021:4413 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | tpm2.0-tools | 4.3.0-4.3.1 | SUSE-SU-2021:1998-1 |
| SLES 15 SP2 | tpm2.0-tools | 4.1-3.3.1 | SUSE-SU-2021:1999-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | tpm2.0-tools | 5.1.1-3.2 | openSUSE-SU-2024:11471-1 |
| openSUSE Leap 15.3 | tpm2.0-tools | 4.3.0-4.3.1 | openSUSE-SU-2021:1998-1 |
| openSUSE Leap 15.2 | tpm2.0-tools | 4.1-lp152.2.3.1 | openSUSE-SU-2021:0934-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | tpm2-tools | 4.2-2 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | tpm2-tools | 4.1.1-5.el8 | ELSA-2021-4413 |
Advisories 11
- ALSA-2021:4413 Moderate: tpm2-tools security and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2022-0571 Red Hat Enterprise Linux: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 28, 2026
- RHSA-2021:4413 Red Hat Security Advisory: tpm2-tools security and enhancement update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RLSA-2021:4413 Moderate: tpm2-tools security and enhancement update Rocky Linux Security Advisories · Feb 5, 2026
- openSUSE-SU-2021:1998-1 Security update for tpm2.0-tools SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0934-1 Security update for tpm2.0-tools SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1998-1 Security update for tpm2.0-tools SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11471-1 tpm2.0-tools-5.1.1-3.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1999-1 Security update for tpm2.0-tools SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-3377 Dell PowerProtect Data Domain: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 12, 2025
- ELSA-2021-4413 Moderate: tpm2-tools security and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 16, 2021
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1964427
- FEDORA-2021-00a15ad850 vendor-advisory
- FEDORA-2021-c970c02748 vendor-advisory