Information disclosure in podman
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure, Security bypass
- Confidentiality · integrity · availability
- Low · None · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-200 and CWE-346.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | podman | podman 3.4.3 | — | No fix listed | CNA |
| — | github.com/containers/podman/v3 (Go) | before 3.4.3 | 3.4.3 | Patch available | GHSA-3cf2-x423-x582 |
- podman Vendor— Affected podman 3.4.3 Fixed in — No fix listed CNA
- github.com/containers/podman/v3 (Go) Vendor— Affected before 3.4.3 Fixed in 3.4.3 Patch available GHSA-3cf2-x423-x582
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:podman_project:podman:*:*:*:*:*:*:*:* | 3.3.0 to before 3.4.3 | Vulnerable | Podman Project |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 34 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | 35 | Vulnerable | Fedoraproject |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Red Hat |
- cpe:2.3:a:podman_project:podman:*:*:*:*:*:*:*:* Versions 3.3.0 to before 3.4.3 Vulnerable ·Podman Project
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
Remediation
- Fix · GHSA-3cf2-x423-x582 github.com/containers/podman/v3 (Go) Fixed in 3.4.3 Advisory →
Red Hat 2 advisories
- RHSA-2024:10289 Released 2024-11-26 · Red Hat rating Moderatecontainer-tools:rhel8 security update
- Red Hat Enterprise Linux AppStream (v. 8) aardvark-dns-2:1.10.1-2.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8, aardvark-dns-2:1.10.1-2.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8, aardvark-dns-2:1.10.1-2.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8 +47
- RHSA-2022:7954 Released 2022-11-15 · Red Hat rating Moderatepodman security and bug fix update
- Red Hat Enterprise Linux AppStream (v. 9) podman-2:4.2.0-3.el9, podman-docker-2:4.2.0-3.el9, podman-gvproxy-2:4.2.0-3.el9 +3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2024:10289 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2022:7954 |
Not affected: 4 products
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat OpenShift Container Platform 3.11
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2021-4024
- 2026-10-03 Alias added: GHSA-3cf2-x423-x582
References
Advisory 3
Sources
- CVE-2021-4024 · CVE Program
- CVE-2021-4024 · NVD
- FIRST EPSS
- GHSA-3cf2-x423-x582 · GitHub Advisory Database · CC BY 4.0
- CVE-2021-4024 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences