SUSE SLED15 / SLES15 Security Update : strongswan (SUSE-SU-2022:4197-1)

high Nessus Plugin ID 168159

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Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2022:4197-1 advisory.

- strongSwan before 5.9.8 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. (CVE-2022-40617)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1203556

https://www.suse.com/security/cve/CVE-2022-40617

http://www.nessus.org/u?2cb2e6e5

Plugin Details

Severity: High

ID: 168159

File Name: suse_SU-2022-4197-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 11/24/2022

Updated: 11/24/2022

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS Score Source: CVE-2022-40617

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:o:novell:suse_linux:15:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:strongswan:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:strongswan-doc:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:strongswan-hmac:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:strongswan-ipsec:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:strongswan-libs0:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:strongswan-nm:*:*:*:*:*:*:*

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 11/23/2022

Vulnerability Publication Date: 10/10/2022

Reference Information

CVE: CVE-2022-40617

SuSE: SUSE-SU-2022:4197-1