CVE-2019-11245: K8s.io/kubernetes/cmd/kubelet Kubelet Incorrect Privilege Assignment Vulnerability

MODERATE
Advisory Identifier: GHSA-r76g-g87f-vw8f
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CVSS 4.9
CWE-703 CWE-266
Published
Advisory Summary

CVE-2019-11245 is a MODERATE (CVSS 4.9) kubelet incorrect privilege assignment vulnerability (CWE-703: Improper Check or Handling of Exceptional Conditions) affecting K8s.io/kubernetes/cmd/kubelet libraries in the Go ecosystem. The issue involves kubelet incorrect privilege assignment. Remediation is available by upgrading affected packages to version 1.14.3, 1.13.7.

CVE-2019-11245 at a Glance

CVE Identifier CVE-2019-11245
GHSA Identifier GHSA-r76g-g87f-vw8f
Severity MODERATE
CVSS v3.1 Base Score 4.9
CWE Classification CWE-703: Improper Check or Handling of Exceptional Conditions
Affected Product K8s.io/kubernetes/cmd/kubelet
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 4.9

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L).

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

How to Fix CVE-2019-11245

To remediate this vulnerability, upgrade all affected K8s.io/kubernetes/cmd/kubelet dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

k8s.io/kubernetes/cmd/kubelet fixed: 1.14.3 
Upgrade k8s.io/kubernetes/cmd/kubelet to 1.14.3
k8s.io/kubernetes/cmd/kubelet fixed: 1.13.7 
Upgrade k8s.io/kubernetes/cmd/kubelet to 1.13.7
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 k8s.io/kubernetes/cmd/kubelet

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-11245, inspect your project dependencies for K8s.io/kubernetes/cmd/kubelet:

inspect dependencies for k8s.io/kubernetes/cmd/kubelet

Analyze the terminal output to locate any version of K8s.io/kubernetes/cmd/kubelet in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.14.3), 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-703: Improper Check or Handling of Exceptional Conditions, where the product does not properly anticipate or handle exceptional conditions that rarely occur during normal operation of the product. In K8s.io/kubernetes/cmd/kubelet, 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

In kubelet v1.13.6 and v1.14.2, containers for pods that do not specify an explicit `runAsUser` attempt to run as uid 0 (root) on container restart, or if the image was previously pulled to the node. If the pod specified `mustRunAsNonRoot: true`, the kubelet will refuse to start the container as root. If the pod did not specify `mustRunAsNonRoot: true`, the kubelet will run the container as uid 0.

CVE-2019-11245 Affected K8s.io/kubernetes/cmd/kubelet Versions

2 component(s)
Fixed Versions:
1.14.31.13.7
Product / Package Ecosystem Affected Versions Fixed Version
k8s.io/kubernetes/cmd/kubelet
golang/k8s.io/kubernetes/cmd/kubelet
Go
≥ 1.14.0
< 1.14.3
1.14.3
k8s.io/kubernetes/cmd/kubelet
golang/k8s.io/kubernetes/cmd/kubelet
Go
≥ 1.13.0
< 1.13.7
1.13.7

References

NVD — CVE-2019-11245 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-11245
K8s.io/kubernetes/cmd/kubelet Source Repository REPOSITORY
https://github.com/kubernetes/kubernetes/issues/78308
K8s.io/kubernetes/cmd/kubelet Source Repository REPOSITORY
https://github.com/kubernetes/kubernetes/pull/76665
K8s.io/kubernetes/cmd/kubelet Source Repository REPOSITORY
https://github.com/kubernetes/kubernetes/pull/76665/commits/26e3c8674e66f0d10170d34f5445f0aed207387f
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=1715726
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-r76g-g87f-vw8f
K8s.io/kubernetes/cmd/kubelet Source Repository REPOSITORY
https://github.com/kubernetes/kubernetes
pkg.go.dev/vuln/go-2024-2780 WEB
https://pkg.go.dev/vuln/GO-2024-2780
K8s.io/kubernetes/cmd/kubelet Security Information SECURITY
https://security.netapp.com/advisory/ntap-20190919-0003

Frequently Asked Questions

What is CVE-2019-11245?
CVE-2019-11245 is a security vulnerability in K8s.io/kubernetes/cmd/kubelet involving Kubelet Incorrect Privilege Assignment under CWE-703: Improper Check or Handling of Exceptional Conditions.
Which K8s.io/kubernetes/cmd/kubelet versions are affected?
Affected versions include releases prior to 1.14.3, 1.13.7 across affected packages: k8s.io/kubernetes/cmd/kubelet.
What version fixes CVE-2019-11245?
Upgrading to 1.14.3, 1.13.7 (or the latest patched release for your respective branch) resolves the vulnerability.
Is k8s.io/kubernetes/cmd/kubelet affected?
Yes, k8s.io/kubernetes/cmd/kubelet is affected in releases prior to 1.14.3, 1.13.7. Upgrade your dependency to 1.14.3, 1.13.7 or later.
What is the CVSS score of CVE-2019-11245?
CVE-2019-11245 has a CVSS v3.1 base score of 4.9 (MODERATE) with vector string CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.
What CWE is associated with CVE-2019-11245?
CVE-2019-11245 is classified under CWE-703: Improper Check or Handling of Exceptional Conditions (The product does not properly anticipate or handle exceptional conditions that rarely occur during normal operation of the product.).
How can I check Go dependencies for CVE-2019-11245?
Run the dependency tree command: 'inspect dependencies for k8s.io/kubernetes/cmd/kubelet'. 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-r76g-g87f-vw8f",
  "modified" : "2024-06-10T19:33:51Z",
  "published" : "2024-04-24T20:03:48Z",
  "aliases" : [ "CVE-2019-11245" ],
  "summary" : "Kubelet Incorrect Privilege Assignment",
  "details" : "In kubelet v1.13.6 and v1.14.2, containers for pods that do not specify an explicit `runAsUser` attempt to run as uid 0 (root) on container restart, or if the image was previously pulled to the node. If the pod specified `mustRunAsNonRoot: true`, the kubelet will refuse to start the container as root. If the pod did not specify `mustRunAsNonRoot: true`, the kubelet will run the container as uid 0.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "k8s.io/kubernetes/cmd/kubelet"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.14.0"
      }, {
        "fixed" : "1.14.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "k8s.io/kubernetes/cmd/kubelet"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.13.0"
      }, {
        "fixed" : "1.13.7"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-11245"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kubernetes/kubernetes/issues/78308"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kubernetes/kubernetes/pull/76665"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kubernetes/kubernetes/pull/76665/commits/26e3c8674e66f0d10170d34f5445f0aed207387f"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1715726"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-r76g-g87f-vw8f"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/kubernetes/kubernetes"
  }, {
    "type" : "WEB",
    "url" : "https://pkg.go.dev/vuln/GO-2024-2780"
  }, {
    "type" : "WEB",
    "url" : "https://security.netapp.com/advisory/ntap-20190919-0003"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-266", "CWE-703" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-24T20:03:48Z",
    "nvd_published_at" : null
  }
}