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Test ID:1.3.6.1.4.1.25623.1.0.148837
Category:Denial of Service
Title:strongSwan 4.x < 5.9.8 DoS Vulnerability
Summary:strongSwan is prone to a denial of service (DoS) vulnerability.
Description:Summary:
strongSwan is prone to a denial of service (DoS) vulnerability.

Vulnerability Insight:
strongSwan allows remote attackers to cause a denial of service
in the revocation plugin by sending a crafted end-entity (and intermediate CA) certificate that
contains a CRL/OCSP URL that points to a server (under the attacker's control) that doesn't
properly respond but (for example) just does nothing after the initial TCP handshake, or sends an
excessive amount of application data.

Affected Software/OS:
strongSwan version 4.x through 5.9.7.

Solution:
Update to version 5.9.8 or later or apply the provided patch.

CVSS Score:
7.8

CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2022-40617
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J3GAYIOCSLU57C45CO4UE4IV4JZE4W3L/
CopyrightCopyright (C) 2022 Greenbone Networks GmbH

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