| Name | CVE-2023-2728 |
| Description | Users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using ephemeral containers. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the `kubernetes.io/enforce-mountable-secrets` annotation are used together with ephemeral containers. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
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 |
| sid, trixie, bookworm | 1.20.5+really1.20.2-1.1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| kubernetes | source | (unstable) | 1.20.5+really1.20.2-1 | | | |
Notes
Server components no longer built since 1.20.5+really1.20.2-1, marking that as fixed version
The source package itself it still vulnerable, but custom rebuilds are not really a usecase here
https://groups.google.com/g/kubernetes-security-announce/c/9oU_lW2cU_g
https://github.com/kubernetes/kubernetes/issues/118640