An issue was discovered in Libreswan 3.x and 4.x before 4.12. When an IKEv1 ISAKMP SA Informational Exchange packet contains a Delete/Notify payload followed by further Notifies that act on the ISAKMP SA, such as a duplicated Delete/Notify message, a NULL pointer dereference on the deleted state causes the pluto daemon to crash and restart.
The product dereferences a pointer that it expects to be valid but is NULL.
Link | Tags |
---|---|
https://github.com/libreswan/libreswan/tags | third party advisory |
https://libreswan.org/security/CVE-2023-38712/ | third party advisory |