CVE-2022-23094: Debian Linux

High severity, CVSS 7.5. EPSS: 2.5% chance of exploitation in the next 30 days.

Libreswan 4.2 through 4.5 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted IKEv1 packet because pluto/ikev1.c wrongly expects that a state object exists. This is fixed in 4.6.

Affected products

• Debian Debian Linux: version 10.0 only
• Fedoraproject Fedora: version 34 only; version 35 only
• Libreswan Libreswan: from 4.2, before 4.6 (fixed in 4.6)

Published 2022-01-15. Last modified 2026-06-17.