CVE-2021-20199: Github.com/containers/podman/v3 Podman Origin Validation Error Vulnerability

MODERATE
Advisory Identifier: GHSA-grh6-q6m2-rh72
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CVSS 5.9
CWE-200 CWE-346
Published
Advisory Summary

CVE-2021-20199 is a MODERATE (CVSS 5.9) podman origin validation error vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Github.com/containers/podman/v3 libraries in the Go ecosystem. The issue involves podman origin validation error. Remediation is available by upgrading affected packages to version 3.0.0.

CVE-2021-20199 at a Glance

CVE Identifier CVE-2021-20199
GHSA Identifier GHSA-grh6-q6m2-rh72
Severity MODERATE
CVSS v3.1 Base Score 5.9
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Github.com/containers/podman/v3
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 5.9

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2021-20199

To remediate this vulnerability, upgrade all affected Github.com/containers/podman/v3 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/containers/podman/v3 fixed: 3.0.0 
Upgrade github.com/containers/podman/v3 to 3.0.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/containers/podman/v3

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-20199, inspect your project dependencies for Github.com/containers/podman/v3:

inspect dependencies for github.com/containers/podman/v3

Analyze the terminal output to locate any version of Github.com/containers/podman/v3 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.0.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Github.com/containers/podman/v3, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Rootless containers run with Podman, receive all traffic with a source IP address of 127.0.0.1 (including from remote hosts). This impacts containerized applications that trust localhost (127.0.01) connections by default and do not require authentication. This issue affects Podman versions from 1.8.0 to 3.0.0.

CVE-2021-20199 Affected Github.com/containers/podman/v3 Versions

1 component(s)
Fixed Versions:
3.0.0
Product / Package Ecosystem Affected Versions Fixed Version
github.com/containers/podman/v3
golang/github.com/containers/podman/v3
Go
< 3.0.0
3.0.0

References

NVD — CVE-2021-20199 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-20199
Github.com/containers/podman/v3 Source Repository REPOSITORY
https://github.com/containers/podman/issues/5138
Github.com/containers/podman/v3 Source Repository REPOSITORY
https://github.com/containers/podman/pull/9052
Github.com/containers/podman/v3 Source Repository REPOSITORY
https://github.com/containers/podman/pull/9225
Github.com/containers/podman/v3 Source Repository REPOSITORY
https://github.com/rootless-containers/rootlesskit/pull/206
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=1919050
Github.com/containers/podman/v3 Release RELEASE
https://github.com/containers/podman/releases/tag/v3.0.0-rc3

Frequently Asked Questions

What is CVE-2021-20199?
CVE-2021-20199 is a security vulnerability in Github.com/containers/podman/v3 involving Podman Origin Validation Error under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Github.com/containers/podman/v3 versions are affected?
Affected versions include releases prior to 3.0.0 across affected packages: github.com/containers/podman/v3.
What version fixes CVE-2021-20199?
Upgrading to 3.0.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/containers/podman/v3 affected?
Yes, github.com/containers/podman/v3 is affected in releases prior to 3.0.0. Upgrade your dependency to 3.0.0 or later.
What is the CVSS score of CVE-2021-20199?
CVE-2021-20199 has a CVSS v3.1 base score of 5.9 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2021-20199?
CVE-2021-20199 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check Go dependencies for CVE-2021-20199?
Run the dependency tree command: 'inspect dependencies for github.com/containers/podman/v3'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-grh6-q6m2-rh72",
  "modified" : "2023-09-18T19:30:49Z",
  "published" : "2021-05-18T21:07:49Z",
  "aliases" : [ "CVE-2021-20199" ],
  "summary" : "Podman Origin Validation Error",
  "details" : "Rootless containers run with Podman, receive all traffic with a source IP address of 127.0.0.1 (including from remote hosts). This impacts containerized applications that trust localhost (127.0.01) connections by default and do not require authentication. This issue affects Podman versions from 1.8.0 to 3.0.0.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/containers/podman/v3"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-20199"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/containers/podman/issues/5138"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/containers/podman/pull/9052"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/containers/podman/pull/9225"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rootless-containers/rootlesskit/pull/206"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1919050"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/containers/podman/releases/tag/v3.0.0-rc3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200", "CWE-346" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-05-18T21:02:35Z",
    "nvd_published_at" : null
  }
}