ipsec-tools | 1:0.8.2+20140711-5 | xenial/universe | source, amd64, arm64, armhf, i386, powerpc, ppc64el, s390x ipsec-tools | 1:0.8.2+20140711-10build1 | bionic/universe | source, amd64, arm64, armhf, i386, ppc64el, s390x
So Xenial has a security issue and Bionic has the "bad" fix. But in general this package is only in universe since 14.04 and even removed in 19.10 for upstream stating that racoon should no more be used.
ipsec-tools | 1:0.8.2+20140711-5 | xenial/universe | source, amd64, arm64, armhf, i386, powerpc, ppc64el, s390x 20140711- 10build1 | bionic/universe | source, amd64, arm64, armhf, i386, ppc64el, s390x
ipsec-tools | 1:0.8.2+
So Xenial has a security issue and Bionic has the "bad" fix.
But in general this package is only in universe since 14.04 and even removed in 19.10 for upstream stating that racoon should no more be used.