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CVE-2021-4024

Status Candidate

Overview

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.

Related Files

Red Hat Security Advisory 2022-7954-01
Posted Nov 16, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-7954-01 - The podman tool manages pods, container images, and containers. It is part of the libpod library, which is for applications that use container pods. Container pods is a concept in Kubernetes. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service
systems | linux, redhat
advisories | CVE-2020-28851, CVE-2020-28852, CVE-2021-20199, CVE-2021-20291, CVE-2021-33197, CVE-2021-34558, CVE-2021-4024, CVE-2022-27191
SHA-256 | a8180c3a1689b71a9ce4a9b23b35c42e5c48899cbe6d18ebd18e254562e3d69c
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