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CVE-2023-41378

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CVE-2023-41378

Published: Nov 6, 2023

Modified: Sep 5, 2024

PUBLISHED

CVSS v3.1

7.5

HIGH

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.

VendorProductVersions

Calico

Typha

affected
v3.26.0 - <= v3.26.2
affected
0 - <= v3.25.1

Tigera

Typha

affected
v3.17.0 - <= v3.17.1
affected
v3.16.0 - <= v3.16.3
affected
0 - <= v3.15.3

Weaknesses (CWE)

CWE-400
CWE-703

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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