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CVE-2024-3652

IKEv1 default AH/ESP responder can cause libreswan to abort and restart

Published: Apr 11, 2024Updated: Jun 17, 2025 Sources: CVE List NVD BDUCWE-404

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High

Weaknesses

Affected Products

and 1 more affected products View all →

Exploitability

Official Patch Available
Workaround Available

References

and 4 more references View all →

Timeline

Published
Apr 11, 2024
Last Updated
Jun 17, 2025

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