SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2024-3652

When the peer requests AES-GMAC, libreswan's default proposal handler causes an assertion failure and crashes and restarts.

MEDIUM 6.5EPSS 0.79%

Does this matter?

Lower severity and a low EPSS score (0.79%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
0.79% probability · 54th percentile
CISA KEV
Not listed
Weakness
CWE-404
Affected
libreswan/libreswan
Source
d42dc95b-23f1-4e06-9076-20753a0fb0df

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.