Description
A race condition exists in the Tang server functionality for key generation and key rotation. This flaw results in a small time window where Tang private keys become readable by other processes on the same host.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | tang | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Fedora | Fedora | — | — |
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 | tang | 14-1 | — |
| Debian 13 | tang | 14-1 | — |
| Debian 12 | tang | 11-2+deb12u1 | — |
| Debian 10 | tang | 7-1+deb10u2 | DLA-3648-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | tang | 11-1ubuntu0.1 | USN-6489-1 |
| Ubuntu 20.04 LTS | tang | 7-1ubuntu0.2 | USN-6489-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | tang | 6-1ubuntu0.1~esm1 | USN-6489-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | tang | 14-2.el9 | RHSA-2023:6492 |
| RHEL 8 | tang | 7-8.el8 | RHSA-2023:7022 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | tang | 14-2.el9 | ALSA-2023:6492 |
| AlmaLinux 8 | tang | 7-8.el8 | ALSA-2023:7022 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | tang | 7-8.el8 | RLSA-2023:7022 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | tang | 14-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | tang | 14-2.el9 | ELSA-2023-6492 |
| Oracle Linux 8 | tang | 7-8.el8 | ELSA-2023-7022 |
Advisories 10
- WID-SEC-2023-2853 Red Hat Enterprise Linux: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 8, 2026
- RLSA-2023:7022 Moderate: tang security and bug fix update Rocky Linux Security Advisories · Nov 5, 2026
- ALSA-2023:7022 Moderate: tang security and bug fix update AlmaLinux Security Advisories · Nov 5, 2026
- ALSA-2023:6492 Moderate: tang security update AlmaLinux Security Advisories · Oct 29, 2026
- DLA-3648-1 tang - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-6489-1 tang vulnerability Ubuntu Security Notices (USN) · Feb 10, 2026
- RHSA-2023:7022 Red Hat Security Advisory: tang security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:6492 Red Hat Security Advisory: tang security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- ELSA-2023-7022 Moderate: tang security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 17, 2023
- ELSA-2023-6492 Moderate: tang security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 11, 2023