Vulnerabilities > CVE-2022-23094 - NULL Pointer Dereference vulnerability in multiple products

CVSS 7.5 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

network

low complexity

NVD

Published: 2022-01-15

Updated: 2023-11-07

Summary

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.

Vulnerable Configurations

Part	Description	Count
Application	Libreswan Libreswan Libreswan 4.2 Libreswan Libreswan 4.3 Libreswan Libreswan 4.4 Libreswan Libreswan 4.5	4
OS	Fedoraproject Fedoraproject Fedora 34 Fedoraproject Fedora 35	2
OS	Debian Debian Debian Linux 10.0	1

Common Weakness Enumeration (CWE)

CWE-476 - NULL Pointer Dereference

References

https://github.com/libreswan/libreswan/issues/585
https://libreswan.org/security/CVE-2022-23094
https://www.debian.org/security/2022/dsa-5048
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UFZ7WP5LNNBW5ADIOPDSPQ23SXZJRNMP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HPMIHAXWQUJAPCIGNJ5J5Q6ASWQBU7T5/