Libreswan up to 4.12 IKEv2 Retransmit denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Libreswan up to 4.12. Impacted is an unknown function of the component IKEv2 Retransmit Handler. The manipulation results in denial of service. This vulnerability is cataloged as CVE-2024-2357. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Libreswan up to 4.12. Affected is an unknown functionality of the component IKEv2 Retransmit Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

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.

The weakness was shared 03/11/2024 by Andrew Vaughn. The advisory is shared for download at libreswan.org. This vulnerability is traded as CVE-2024-2357 since 03/09/2024. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 211987 (RHEL 9 : libreswan (RHSA-2024:10594)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (211987). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 211987
Nessus Name: RHEL 9 : libreswan (RHSA-2024:10594)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Libreswan 5.0

Timelineinfo

03/09/2024 🔍
03/11/2024 +2 days 🔍
03/11/2024 +0 days 🔍
12/02/2024 +266 days 🔍

Sourcesinfo

Advisory: FEDORA-2024-1439ec2069
Researcher: Andrew Vaughn
Status: Confirmed

CVE: CVE-2024-2357 (🔍)
GCVE (CVE): GCVE-0-2024-2357
GCVE (VulDB): GCVE-100-256404

Entryinfo

Created: 03/11/2024 20:51
Updated: 12/02/2024 19:01
Changes: 03/11/2024 20:51 (40), 04/08/2024 14:09 (15), 11/20/2024 20:54 (13), 12/02/2024 19:01 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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