RHEL 8 : libreswan (RHSA-2022:0239)

high Nessus Plugin ID 157051

Synopsis

The remote Red Hat host is missing a security update for libreswan.

Description

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2022:0239 advisory.

Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN).

Security Fix(es):

* libreswan: Malicious IKEv1 packet can cause libreswan to restart (CVE-2022-23094)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 RHEL libreswan package based on the guidance in RHSA-2022:0239.

See Also

http://www.nessus.org/u?35a77a0a

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=2036898

https://access.redhat.com/errata/RHSA-2022:0239

Plugin Details

Severity: High

ID: 157051

File Name: redhat-RHSA-2022-0239.nasl

Version: 1.10

Type: local

Agent: unix

Published: 1/25/2022

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2022-23094

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:rhel_eus:8.4, p-cpe:/a:redhat:enterprise_linux:libreswan

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/24/2022

Vulnerability Publication Date: 1/15/2022

Reference Information

CVE: CVE-2022-23094

CWE: 476

RHSA: 2022:0239