The vulnerability of the VPN protocol library using “IPsec” in libreswan, related to the possibility of successful exploitation, allows an attacker to perform a type of attack known as “denial-of-service attack”.

The vulnerability of the VPN protocol using “IPsec” with libreswan is related to a flaw in the processing of IKEv2 REKEY packets. Exploiting this vulnerability allows an attacker operating remotely to perform a type of attack known as a “denial-of-service” attack...

AZL-34935 CVE-2023-38710 affecting package libreswan for versions less than 4.7-6

An issue was discovered in Libreswan before 4.12. When an IKEv2 Child SA REKEY packet contains an invalid IPsec protocol ID number of 0 or 1, an error notify INVALIDSPI is sent back. The notify payload's protocol ID is copied from the incoming packet, but the code that verifies outgoing packets...