Race condition exists in the key generation and rotation functionality
Published Jul 11, 2023
5.3
MEDIUMCVSS 3.1
EPSS 0.57%
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 n/a Product Tang Defaultaffected
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||
|---|---|---|---|---|---|---|
| Fedora | Fedora | affected |
| |||
| Red Hat | Red Hat Enterprise Linux 8 | affected |
| |||
| Red Hat | Red Hat Enterprise Linux 9 | affected |
| |||
| n/a | Tang | affected |
|
Configuration 1
- < 14
Configuration 2
- 38
Configuration 3
- 8.0
- 9.0
No data.
Red Hat Enterprise Linux 8
tang-0:7-8.el8
Fixed · RHSA-2023:7022
Red Hat Enterprise Linux 9
tang-0:14-2.el9
Fixed · RHSA-2023:6492
Red Hat Enterprise Linux 7
tang
Out of support scope
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 8 | tang-0:7-8.el8 | Fixed | RHSA-2023:7022 |
| Red Hat Enterprise Linux 9 | tang-0:14-2.el9 | Fixed | RHSA-2023:6492 |
| Red Hat Enterprise Linux 7 | tang | Out of support scope | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Oct 1, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2023–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (7 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.57% (0.00568) | 45.02th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.60% (0.00599) | 43.80th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.02% (0.00021) | 3.14th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.07% (0.00070) | 32.56th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.05% (0.00052) | 20.59th | v3 (v2023.03.01) |
| Jul 20, 2023 | 0.05% (0.00052) | 18.54th | v3 (v2023.03.01) |
| Jul 12, 2023 | 0.04% (0.00045) | 12.37th | v3 (v2023.03.01) |
References (7)
- https://access.redhat.com/security/cve/CVE-2023-1672 vdb-entryx_refsource_REDHATThird Party AdvisoryVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2180999 issue-trackingx_refsource_REDHATIssue TrackingPatchThird Party Advisory
- https://github.com/latchset/tang/commit/8dbbed10870378f1b2c3cf3df2ea7edca7617096 Patch
- https://lists.debian.org/debian-lts-announce/2023/11/msg00004.html
- https://nvd.nist.gov/vuln/detail/CVE-2023-1672
- https://www.cve.org/CVERecord?id=CVE-2023-1672
- https://www.openwall.com/lists/oss-security/2023/06/15/1 ExploitMailing ListThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-1672 | vdb-entryx_refsource_REDHATThird Party AdvisoryVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2180999 | issue-trackingx_refsource_REDHATIssue TrackingPatchThird Party Advisory | |
| https://github.com/latchset/tang/commit/8dbbed10870378f1b2c3cf3df2ea7edca7617096 | Patch | |
| https://lists.debian.org/debian-lts-announce/2023/11/msg00004.html | ||
| https://nvd.nist.gov/vuln/detail/CVE-2023-1672 | ||
| https://www.cve.org/CVERecord?id=CVE-2023-1672 | ||
| https://www.openwall.com/lists/oss-security/2023/06/15/1 | ExploitMailing ListThird Party Advisory |
Change history (0)
No recorded changes yet.