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CVE-2021-4024

Published: 23 December 2021

A flaw was found in podman. The `podman machine` function (used to create and manage Podman virtual machine containing a Podman process) spawns a `gvproxy` process on the host system. The `gvproxy` API is accessible on port 7777 on all IP addresses on the host. If that port is open on the host's firewall, an attacker can potentially use the `gvproxy` API to forward ports on the host to ports in the VM, making private services on the VM accessible to the network. This issue could be also used to interrupt the host's services by forwarding all ports to the VM.

Priority

Medium

CVSS 3 base score: 6.5

Status

Package Release Status
libpod
Launchpad, Ubuntu, Debian
hirsute Ignored
(reached end-of-life)
impish Needs triage

jammy Needs triage

trusty Ignored
(out of standard support)
upstream Needs triage

xenial Ignored
(out of standard support)