CVE-2020-8554

Name	CVE-2020-8554
Description	Kubernetes API server in all versions allow an attacker who is able to create a ClusterIP service and set the spec.externalIPs field, to intercept traffic to that IP address. Additionally, an attacker who is able to patch the status (which is considered a privileged operation and should not typically be granted to users) of a LoadBalancer service can set the status.loadBalancer.ingress.ip to similar effect.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severity	medium
Debian Bugs	990793

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
kubernetes (PTS)	bullseye	1.20.5+really1.20.2-1	fixed
	bookworm, sid	1.20.5+really1.20.2-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
kubernetes	source	bullseye	(not affected)
kubernetes	source	(unstable)	(unfixed)			990793

Notes

[bullseye] - kubernetes <not-affected> (Kubernetes in Bullseye only ships the client)
https://www.openwall.com/lists/oss-security/2020/12/07/5
https://github.com/kubernetes/kubernetes/issues/97076
Server components no longer built since 1.20.5+really1.20.2-1