CVE-2022-4122: Github.com/containers/podman/v4 Buildah (as Part Of Podman) Vulnerability

MODERATE
Advisory Identifier: GHSA-4crw-w8pw-2hmf
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CVSS 5.3
CWE-59
Published
Advisory Summary

CVE-2022-4122 is a MODERATE (CVSS 5.3) buildah (as part of podman) vulnerability (CWE-59: Improper Link Resolution Before File Access ('Link Following')) affecting Github.com/containers/podman/v4 libraries in the Go ecosystem. The issue involves buildah (as part of podman) vulnerable to link following. Remediation is available by upgrading affected packages to version 4.5.0.

CVE-2022-4122 at a Glance

CVE Identifier CVE-2022-4122
GHSA Identifier GHSA-4crw-w8pw-2hmf
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-59: Improper Link Resolution Before File Access ('Link Following')
Affected Product Github.com/containers/podman/v4
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 5.3

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

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

How to Fix CVE-2022-4122

To remediate this vulnerability, upgrade all affected Github.com/containers/podman/v4 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/v4 fixed: 4.5.0 
Upgrade github.com/containers/podman/v4 to 4.5.0
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/v4

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-4122, inspect your project dependencies for Github.com/containers/podman/v4:

inspect dependencies for github.com/containers/podman/v4

Analyze the terminal output to locate any version of Github.com/containers/podman/v4 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.5.0), 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-59: Improper Link Resolution Before File Access ('Link Following'), where the product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. In Github.com/containers/podman/v4, 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

A vulnerability was found in buildah. Incorrect following of symlinks while reading .containerignore and .dockerignore results in information disclosure.

CVE-2022-4122 Affected Github.com/containers/podman/v4 Versions

1 component(s)
Fixed Versions:
4.5.0
Product / Package Ecosystem Affected Versions Fixed Version
github.com/containers/podman/v4
golang/github.com/containers/podman/v4
Go
< 4.5.0
4.5.0

References

NVD — CVE-2022-4122 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-4122
Github.com/containers/podman/v4 Source Repository REPOSITORY
https://github.com/containers/podman/pull/16315
Security Fix Commit FIX COMMIT
https://github.com/containers/podman/commit/c8eeab21cf0a4f670be0cd399dd06fd5d4e06dfe
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2144983

Frequently Asked Questions

What is CVE-2022-4122?
CVE-2022-4122 is a security vulnerability in Github.com/containers/podman/v4 involving Buildah (as part of Podman) vulnerable to Link Following under CWE-59: Improper Link Resolution Before File Access ('Link Following').
Which Github.com/containers/podman/v4 versions are affected?
Affected versions include releases prior to 4.5.0 across affected packages: github.com/containers/podman/v4.
What version fixes CVE-2022-4122?
Upgrading to 4.5.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/containers/podman/v4 affected?
Yes, github.com/containers/podman/v4 is affected in releases prior to 4.5.0. Upgrade your dependency to 4.5.0 or later.
What is the CVSS score of CVE-2022-4122?
CVE-2022-4122 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2022-4122?
CVE-2022-4122 is classified under CWE-59: Improper Link Resolution Before File Access ('Link Following') (The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.).
How can I check Go dependencies for CVE-2022-4122?
Run the dependency tree command: 'inspect dependencies for github.com/containers/podman/v4'. 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-4crw-w8pw-2hmf",
  "modified" : "2022-12-12T20:44:49Z",
  "published" : "2022-12-08T18:30:50Z",
  "aliases" : [ "CVE-2022-4122" ],
  "summary" : "Buildah (as part of Podman) vulnerable to Link Following",
  "details" : "A vulnerability was found in buildah. Incorrect following of symlinks while reading .containerignore and .dockerignore results in information disclosure.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/containers/podman/v4"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.5.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-4122"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/containers/podman/pull/16315"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/containers/podman/commit/c8eeab21cf0a4f670be0cd399dd06fd5d4e06dfe"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2144983"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-59" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-12-08T23:39:14Z",
    "nvd_published_at" : "2022-12-08T16:15:00Z"
  }
}