Detections
Analytics
Amazon Linux 2023 : libreswan (ALAS2023-2024-587)
high Nessus Plugin ID 193438
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Synopsis
The remote Amazon Linux 2023 host is missing a security update.Description
It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2024-587 advisory.- The Libreswan Project was notified of an issue causing libreswan to restart under some IKEv2 retransmit scenarios when a connection is configured to use PreSharedKeys (authby=secret) and the connection cannot find a matching configured secret. When such a connection is automatically added on startup using the auto= keyword, it can cause repeated crashes leading to a Denial of Service. (CVE-2024-2357)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Run 'dnf update libreswan --releasever 2023.4.20240416' to update your system.See Also
https://alas.aws.amazon.com/AL2023/ALAS-2024-587.html
Plugin Details
Severity: High
ID: 193438
File Name: al2023_ALAS2023-2024-587.nasl
Version: 1.0
Type: local
Agent: unix
Published: 4/17/2024
Updated: 4/17/2024
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2024-2357
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: p-cpe:/a:amazon:linux:libreswan, p-cpe:/a:amazon:linux:libreswan-debuginfo, p-cpe:/a:amazon:linux:libreswan-debugsource, cpe:/o:amazon:linux:2023
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 4/10/2024
Vulnerability Publication Date: 3/11/2024
Reference Information
CVE: CVE-2024-2357