Vulnerability CVE-2021-4024: Information

Description

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.

Severity: MEDIUM (6.5) Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

URL: https://nvd.nist.gov/vuln/detail/CVE-2021-4024
Published: Dec. 23, 2021
Modified: Nov. 7, 2023
Error type identifier: CWE-200, CWE-346

Fixed packages

Package name
Branch
Fixed in version
Version from repository
Errata ID
Task #
State
podmansisyphus3.4.3-alt15.1.1-alt1ALT-PU-2021-3495-1291655Fixed
podmanp103.4.3-alt24.9.4-alt0.p10ALT-PU-2021-3549-1291653Fixed
podmanc10f13.4.3-alt24.4.4-alt1ALT-PU-2021-3549-1291653Fixed
podmanc9f23.4.3-alt23.4.3-alt2ALT-PU-2022-1252-1293762Fixed
podmanp113.4.3-alt15.1.0-alt1ALT-PU-2021-3495-1291655Fixed

References to Advisories, Solutions, and Tools

Hyperlink
Resource
https://github.com/containers/podman/releases/tag/v3.4.3
  • Release Notes
  • Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2026675%2C
    FEDORA-2021-6bd024d2a7

        1. Configuration 1

          cpe:2.3:a:podman_project:podman:*:*:*:*:*:*:*:*
          Start including
          3.3.0
          End excliding
          3.4.3

          Configuration 2

          cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
          cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

          Configuration 3

          cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
      VKontakte|Telegram|YouTube|Forum|GitHub|Bugzilla
      Version: v24.5.3
      Back to top