pluto in Libreswan before 4.11 allows a denial of service (responder SPI mishandling and daemon crash) via unauthenticated IKEv1 Aggressive Mode packets. The earliest affected version is 3.28.
{ "binaries": [ { "binary_version": "3.23-4", "binary_name": "libreswan" } ] }
{ "binaries": [ { "binary_version": "3.29-2build1", "binary_name": "libreswan" } ] }
{ "binaries": [ { "binary_version": "3.32-3ubuntu3", "binary_name": "libreswan" } ] }
{ "binaries": [ { "binary_version": "4.14-1ubuntu2", "binary_name": "libreswan" } ] }
{ "binaries": [ { "binary_version": "5.2-2.2ubuntu1", "binary_name": "libreswan" } ] }