CVE-2022-0759

Name	CVE-2022-0759
Description	A flaw was found in all versions of kubeclient up to (but not including) v4.9.3, the Ruby client for Kubernetes REST API, in the way it parsed kubeconfig files. When the kubeconfig file does not configure custom CA to verify certs, kubeclient ends up accepting any certificate (it wrongly returns VERIFY_NONE). Ruby applications that leverage kubeclient to parse kubeconfig files are susceptible to Man-in-the-middle attacks (MITM).
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1014780

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ruby-kubeclient (PTS)	buster	4.2.0-2	vulnerable
	bullseye	4.9.1-2	vulnerable
	bookworm	4.9.3-2	fixed
	sid, trixie	4.11.0-2	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
ruby-kubeclient	source	(unstable)	4.9.3-1			1014780

Notes

[bullseye] - ruby-kubeclient <no-dsa> (Minor issue)
[buster] - ruby-kubeclient <no-dsa> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=2058404
https://github.com/ManageIQ/kubeclient/issues/554
https://github.com/ManageIQ/kubeclient/pull/556
https://github.com/ManageIQ/kubeclient/issues/555
https://github.com/ManageIQ/kubeclient/pull/556