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CVE-2024-3652— IKEv1 default AH/ESP responder can cause libreswan to abort and restart

Quick assessment

Affected
The Libreswan Project (www.libreswan.org) libreswan
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Libreswan是一个类似于Openswan的IPsec实现，它主要用于保证数据传输中的安全性、完整性问题。 Libreswan 存在安全漏洞，该漏洞源于当对等方请求 AES-GMAC 时，libreswan 的 default proposal处理程序会断言失败并崩溃并重新启动。

AI Predicted 5.9 Difficulty: Moderate EPSS 0.79% · P55

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2024-3652

Vulnerability Information
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Vulnerability Title
IKEv1 default AH/ESP responder can cause libreswan to abort and restart
Source: CVE Program / CVE List V5
Vulnerability Description
The Libreswan Project was notified of an issue causing libreswan to restart when using IKEv1 without specifying an esp= line. When the peer requests AES-GMAC, libreswan's default proposal handler causes an assertion failure and crashes and restarts. IKEv2 connections are not affected.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Libreswan 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Libreswan是一个类似于Openswan的IPsec实现，它主要用于保证数据传输中的安全性、完整性问题。 Libreswan 存在安全漏洞，该漏洞源于当对等方请求 AES-GMAC 时，libreswan 的 default proposal处理程序会断言失败并崩溃并重新启动。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
The Libreswan Project (www.libreswan.org) libreswan 3.22 ~ 4.14 -

II. Public POCs for CVE-2024-3652

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III. Intelligence Information for CVE-2024-3652

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Mailing List Discussions for CVE-2024-3652 (1)

Other References for CVE-2024-3652 (1)

IV. Related Vulnerabilities

Same product: libreswan
Same vendor: The Libreswan Project (www.libreswan.org)

V. Comments for CVE-2024-3652

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