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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.
Reserved 2023-08-29 | Published 2023-11-06 | Updated 2024-09-05 | Assigner TigeraCWE-400 Uncontrolled Resource Consumption
CWE-703 Improper Check or Handling of Exceptional Conditions
Rodrigo Fior Kuntzer (Github: rodrigorfk)
Anthony Tam
Behnam Shobiri
Shaun Crampton
Matt Dupre
www.tigera.io/security-bulletins-tta-2023-001/
github.com/projectcalico/calico/pull/7908
github.com/projectcalico/calico/pull/7993
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