An issue was discovered in Docker Engine before 19.03.11. An attacker in a container, with the CAP_NET_RAW capability, can craft IPv6 router advertisements, and consequently spoof external IPv6 hosts, obtain sensitive information, or cause a denial of service.
https://www.debian.org/security/2020/dsa-4716
https://security.netapp.com/advisory/ntap-20200717-0002/
https://security.gentoo.org/glsa/202008-15
https://github.com/docker/docker-ce/releases/tag/v19.03.11