CVE & CISA-KEV CatalogNVD
CVE-2021-4024
MEDIUM6.5
CVSS v3
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.
How to fix
Remediation Available
libpodDebian
Fixed in:3.4.3+ds1-1CVE-2021-4024
aardvark-dns-2:1.10.1Rocky
Fixed in:2.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:2.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:2.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:2.module+el8.10.0+22417+2fb00970.src::container-tools:rhel8RHSA-2024:10289
Fixed in:2.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
aardvark-dns-2:1.10.1Red Hat / RHEL
Fixed in:2.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:2.module+el8.10.0+22417+2fb00970.src::container-tools:rhel8RHSA-2024:10289
Fixed in:2.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:2.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:2.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
buildah-2:1.33.11Rocky
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.src::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
buildah-2:1.33.11Red Hat / RHEL
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.src::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
buildah-debuginfo-2:1.33.11Rocky
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
buildah-debuginfo-2:1.33.11Red Hat / RHEL
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
buildah-debugsource-2:1.33.11Red Hat / RHEL
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
buildah-debugsource-2:1.33.11Rocky
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
buildah-tests-2:1.33.11Red Hat / RHEL
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
buildah-tests-2:1.33.11Rocky
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
buildah-tests-debuginfo-2:1.33.11Rocky
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
buildah-tests-debuginfo-2:1.33.11Red Hat / RHEL
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
cockpit-podman-0:84.1Red Hat / RHEL
Fixed in:1.module+el8.10.0+22417+2fb00970.src::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.noarch::container-tools:rhel8RHSA-2024:10289
cockpit-podman-0:84.1Rocky
Fixed in:1.module+el8.10.0+22417+2fb00970.noarch::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.src::container-tools:rhel8RHSA-2024:10289
conmon-3:2.1.10Rocky
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.src::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
conmon-3:2.1.10Red Hat / RHEL
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.src::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
conmon-debuginfo-3:2.1.10Red Hat / RHEL
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
conmon-debuginfo-3:2.1.10Rocky
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
conmon-debugsource-3:2.1.10Rocky
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
conmon-debugsource-3:2.1.10Red Hat / RHEL
Fixed in:1.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:1.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
container-selinux-2:2.229.0Rocky
Fixed in:2.module+el8.10.0+22417+2fb00970.noarch::container-tools:rhel8RHSA-2024:10289
Fixed in:2.module+el8.10.0+22417+2fb00970.src::container-tools:rhel8RHSA-2024:10289
container-selinux-2:2.229.0Red Hat / RHEL
Fixed in:2.module+el8.10.0+22417+2fb00970.noarch::container-tools:rhel8RHSA-2024:10289
Fixed in:2.module+el8.10.0+22417+2fb00970.src::container-tools:rhel8RHSA-2024:10289
containernetworking-plugins-1:1.4.0Rocky
Fixed in:5.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.src::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
containernetworking-plugins-1:1.4.0Red Hat / RHEL
Fixed in:5.module+el8.10.0+22417+2fb00970.src::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
containernetworking-plugins-debuginfo-1:1.4.0Red Hat / RHEL
Fixed in:5.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
containernetworking-plugins-debuginfo-1:1.4.0Rocky
Fixed in:5.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
containernetworking-plugins-debugsource-1:1.4.0Rocky
Fixed in:5.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
containernetworking-plugins-debugsource-1:1.4.0Red Hat / RHEL
Fixed in:5.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:5.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
containers-common-2:1Red Hat / RHEL
Fixed in:82.module+el8.10.0+22417+2fb00970.aarch64::container-tools:rhel8RHSA-2024:10289
Fixed in:82.module+el8.10.0+22417+2fb00970.ppc64le::container-tools:rhel8RHSA-2024:10289
Fixed in:82.module+el8.10.0+22417+2fb00970.s390x::container-tools:rhel8RHSA-2024:10289
Fixed in:82.module+el8.10.0+22417+2fb00970.src::container-tools:rhel8RHSA-2024:10289
Fixed in:82.module+el8.10.0+22417+2fb00970.x86_64::container-tools:rhel8RHSA-2024:10289
This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Exploit Intelligence
1.06%probability of exploitation in 30 days
62ndpercentile
Moderate risk: more likely to be exploited than 62% of all known CVEs.
References
Third-Party Advisory1
Other references2
Related Vulnerabilities
Other CWE-200 (Information Exposure) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-24919 | High | 8.6 | 100% | KEV + Ransom | - |
| CVE-2020-14181 | Medium | 5.3 | 100% | - | Fix |
| CVE-2021-34429 | Medium | 5.3 | 99% | - | Fix |
| CVE-2018-11409 | Medium | 5.3 | 98% | - | - |
| CVE-2021-41277 | Critical | 10.0 | 97% | KEV | - |
| CVE-2016-2183 | High | 7.5 | 96% | - | Fix |
Common questions
How do I fix CVE-2021-4024?
Published advisories record a fix for 131 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.
Is CVE-2021-4024 being actively exploited?
Not that we know of. CVE-2021-4024 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.1% is the estimated probability that it will be exploited in the next 30 days. That is higher than 62% of all scored CVEs.
How severe is CVE-2021-4024?
CVE-2021-4024 has a CVSS v3 base score of 6.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2021-4024 affect?
Published advisories record a fix for libpod (Debian), aardvark-dns-2:1.10.1 (Rocky), aardvark-dns-2:1.10.1 (Red Hat / RHEL), buildah-2:1.33.11 (Rocky), and 127 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2021-4024
Markdown
[](https://tridentstack.com/cve/CVE-2021-4024)HTML
<a href="https://tridentstack.com/cve/CVE-2021-4024"><img src="https://tridentstack.com/cve/badge/CVE-2021-4024.svg" alt="CVE-2021-4024"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.