CVE-2023-41378

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.

CVSS v3.0 7.5 HIGH

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/projectcalico/calico/pull/7993	Issue Tracking Patch
https://github.com/projectcalico/calico/pull/7908	Issue Tracking
https://www.tigera.io/security-bulletins-tta-2023-001/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:tigera:calico_cloud::::::::
	cpe:2.3:a:tigera:calico_enterprise::::::::
	cpe:2.3:a:tigera:calico_enterprise::::::::
	cpe:2.3:a:tigera:calico_enterprise::::::::
	cpe:2.3:o:tigera:calico_os::::::::
	cpe:2.3:o:tigera:calico_os::::::::

Information

Published : 2023-11-06 16:15

Updated : 2023-11-14 17:48

NVD link : CVE-2023-41378

Mitre link : CVE-2023-41378

JSON object : View

Products Affected

tigera

calico_os
calico_enterprise
calico_cloud

CWE

CWE-755

Improper Handling of Exceptional Conditions

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