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.
References
Link | Resource |
---|---|
https://github.com/projectcalico/calico/pull/7908 | Issue Tracking |
https://github.com/projectcalico/calico/pull/7993 | Issue Tracking Patch |
https://www.tigera.io/security-bulletins-tta-2023-001/ | Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: Tigera
Published: 2023-11-06T15:00:53.249Z
Updated: 2023-11-06T15:00:53.249Z
Reserved: 2023-08-29T17:03:16.306Z
Link: CVE-2023-41378
JSON object: View
NVD Information
Status : Analyzed
Published: 2023-11-06T16:15:42.273
Modified: 2023-11-14T17:48:01.570
Link: CVE-2023-41378
JSON object: View
Redhat Information
No data.