#VU59521 NULL pointer dereference in libreswan - CVE-2022-23094
Published: January 12, 2022
Vulnerability identifier: #VU59521
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-23094
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
libreswan
libreswan
Software vendor:
libreswan.org
libreswan.org
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error when processing malformed IKEv1 packets. A remote attacker can send specially crafted IKEv1 packet to the application, trigger a NULL pointer dereference error during a logging action on the rejected IKEv1 packet and crash the pluto daemon.
Remediation
Install updates from vendor's website.