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CVE

CVE-2024-3652

The Libreswan Project was notified of an issue causing libreswan to restart when using IKEv1 without specifying an esp=

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.

MEDIUM · CVSS 6.5 EPSS 0.00043
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-404Improper Resource Shutdown or Release
▤

Affected Products & Versions

1
libreswan>= 3.22 and < 4.15
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · d42dc95b-23f1-4e06-9076-20753a0fb0df
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Apr 2024 · 02:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

10
msrcCVE-2024-3652
rhsaRHSA-2024:4376Moderate
rhsaRHSA-2024:4200Moderate
rhsaRHSA-2024:4431Moderate
rhsaRHSA-2024:4377Moderate
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2024/04/18/2Mailing List
https://libreswan.org/security/CVE-2024-3652Third Party Advisory
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