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Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS : strongSwan vulnerability (USN-5651-1)

high Nessus Plugin ID 165668

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-5651-1 advisory.

 Lahav Schlesinger discovered that strongSwan incorrectly handled certain OCSP URIs and and CRL distribution points (CDP) in certificates. A remote attacker could possibly use this issue to initiate IKE_SAs and send crafted certificates that contain URIs pointing to servers under their control, which can lead to a denial-of-service attack.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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://ubuntu.com/security/notices/USN-5651-1

Plugin Details

Severity: High

ID: 165668

File Name: ubuntu_USN-5651-1.nasl

Version: 1.7

Type: local

Agent: unix

Published: 10/5/2022

Updated: 8/27/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

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

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:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:strongswan, p-cpe:/a:canonical:ubuntu_linux:libstrongswan-standard-plugins, p-cpe:/a:canonical:ubuntu_linux:strongswan-nm, p-cpe:/a:canonical:ubuntu_linux:libcharon-extra-plugins, p-cpe:/a:canonical:ubuntu_linux:charon-cmd, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libstrongswan, p-cpe:/a:canonical:ubuntu_linux:strongswan-libcharon, p-cpe:/a:canonical:ubuntu_linux:libcharon-standard-plugins, p-cpe:/a:canonical:ubuntu_linux:strongswan-tnc-ifmap, p-cpe:/a:canonical:ubuntu_linux:strongswan-tnc-base, p-cpe:/a:canonical:ubuntu_linux:strongswan-pki, p-cpe:/a:canonical:ubuntu_linux:strongswan-swanctl, p-cpe:/a:canonical:ubuntu_linux:libstrongswan-extra-plugins, p-cpe:/a:canonical:ubuntu_linux:strongswan-tnc-server, p-cpe:/a:canonical:ubuntu_linux:strongswan-tnc-pdp, p-cpe:/a:canonical:ubuntu_linux:strongswan-scepclient, p-cpe:/a:canonical:ubuntu_linux:libcharon-extauth-plugins, p-cpe:/a:canonical:ubuntu_linux:charon-systemd, p-cpe:/a:canonical:ubuntu_linux:strongswan-starter, p-cpe:/a:canonical:ubuntu_linux:strongswan-tnc-client, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:strongswan-charon

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 10/3/2022

Vulnerability Publication Date: 10/3/2022

Reference Information

CVE: CVE-2022-40617

USN: 5651-1