CVE-2024-25621: Github.com/containerd/containerd Containerd Affected By A Local Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-pwhc-rpq9-4c8w",
  "modified" : "2025-11-06T23:12:26Z",
  "published" : "2025-11-06T15:12:08Z",
  "aliases" : [ "CVE-2024-25621" ],
  "summary" : "containerd affected by a local privilege escalation via wide permissions on CRI directory",
  "details" : "### Impact\n\nAn overly broad default permission vulnerability was found in containerd.\n\n- `/var/lib/containerd` was created with the permission bits 0o711, while it should be created with 0o700\n  - Allowed local users on the host to potentially access the metadata store and the content store\n- `/run/containerd/io.containerd.grpc.v1.cri` was created with 0o755, while it should be created with 0o700\n  - Allowed local users on the host to potentially access the contents of Kubernetes local volumes. The contents of volumes might include setuid binaries, which could allow a local user on the host to elevate privileges on the host.\n- `/run/containerd/io.containerd.sandbox.controller.v1.shim` was created with 0o711, while it should be created with 0o700\n\nThe directory paths may differ depending on the daemon configuration.\nWhen the `temp` directory path is specified in the daemon configuration, that directory was also created with 0o711, while it should be created with 0o700.\n\n### Patches\n\nThis bug has been fixed in the following containerd versions:\n\n* 2.2.0\n* 2.1.5\n* 2.0.7\n* 1.7.29\n\nUsers should update to these versions to resolve the issue.\nThese updates automatically change the permissions of the existing directories.\n\n> [!NOTE]\n>\n> `/run/containerd` and `/run/containerd/io.containerd.runtime.v2.task` are still created with 0o711.\n> This is an expected behavior for supporting userns-remapped containers.\n\n### Workarounds\n\nThe system administrator on the host can manually chmod the directories to not \nhave group or world accessible permisisons:\n\n```\nchmod 700 /var/lib/containerd\nchmod 700 /run/containerd/io.containerd.grpc.v1.cri\nchmod 700 /run/containerd/io.containerd.sandbox.controller.v1.shim\n```\n\nAn alternative mitigation would be to run containerd in [rootless mode](https://github.com/containerd/containerd/blob/main/docs/rootless.md).\n\n### Credits\n\nThe containerd project would like to thank David Leadbeater for responsibly disclosing this issue in accordance with the [containerd security policy](https://github.com/containerd/project/blob/main/SECURITY.md).\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Open an issue in [containerd](https://github.com/containerd/containerd/issues/new/choose)\n* Email us at [security@containerd.io](mailto:security@containerd.io)\n\nTo report a security issue in containerd:\n\n* [Report a new vulnerability](https://github.com/containerd/containerd/security/advisories/new)",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/containerd/containerd"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.7.29"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/containerd/containerd/v2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.0.7"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/containerd/containerd/v2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.1.0-beta.0"
      }, {
        "fixed" : "2.1.5"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/containerd/containerd/v2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.2.0-beta.0"
      }, {
        "fixed" : "2.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/containerd/containerd/security/advisories/GHSA-pwhc-rpq9-4c8w"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-25621"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/containerd/containerd/commit/7c59e8e9e970d38061a77b586b23655c352bfec5"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/containerd/containerd"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/containerd/containerd/blob/main/docs/rootless.md"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-279" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-11-06T15:12:08Z",
    "nvd_published_at" : "2025-11-06T19:15:40Z"
  }
}