CVE-2023-41378

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

06/11/2023

Last modified:

14/11/2023

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.<br />

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:tigera:calico_cloud::::::::		18.0.0 (excluding)
cpe:2.3:a:tigera:calico_enterprise::::::::		3.15.4 (excluding)
cpe:2.3:a:tigera:calico_enterprise::::::::	3.16.0 (including)	3.16.4 (excluding)
cpe:2.3:a:tigera:calico_enterprise::::::::	3.17.0 (including)	3.17.2 (excluding)
cpe:2.3:o:tigera:calico_os::::::::		3.25.2 (excluding)
cpe:2.3:o:tigera:calico_os::::::::	3.26.0 (including)	3.26.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-41378

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools