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Security Advisories

CVE-2023-41378

NVD

https://nvd.nist.gov/vuln/detail/CVE-2023-41378

Severity

7.5

High

CVSS V3

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Description

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

  • https://nvd.nist.gov/vuln/detail/CVE-2023-41378
  • https://github.com/advisories/GHSA-5r5h-q934-cccp
  • https://www.tigera.io/security-bulletins-tta-2023-001/
  • https://github.com/projectcalico/calico/pull/7908
  • https://github.com/projectcalico/calico/pull/7993

Affected packages

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