CVE-2023-41378
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In certain conditions for Calico Typha (v3.26.2, v3.25.1 and below), and Calico Enterprise Typha (v3.17.1, v3.16.3, v3.15.3 and below), a client TLS handshake can block the Calico Typha server indefinitely, resulting in denial of service. The TLS Handshake() call is performed inside the main server handle for loop without any timeout allowing an unclean TLS handshake to block the main loop indefinitely while other connections will be idle waiting for that handshake to finish.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Calico | Typha | v3.26.0 <= v3.26.2 | affected |
| Calico | Typha | 0 <= v3.25.1 | affected |
| Tigera | Typha | v3.17.0 <= v3.17.1 | affected |
| Tigera | Typha | v3.16.0 <= v3.16.3 | affected |
| Tigera | Typha | 0 <= v3.15.3 | affected |
Weaknesses
- CWE-400: CWE-400 Uncontrolled Resource Consumption
- CWE-703: CWE-703 Improper Check or Handling of Exceptional Conditions
ADP Enrichment
CVE Program Container
Additional References
- https://www.tigera.io/security-bulletins-tta-2023-001/
- https://github.com/projectcalico/calico/pull/7908
- https://github.com/projectcalico/calico/pull/7993
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
- https://www.tigera.io/security-bulletins-tta-2023-001/
- https://github.com/projectcalico/calico/pull/7908
- https://github.com/projectcalico/calico/pull/7993
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.