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CVE-2022-29162

Estado: ModificadaAlta (7.8)—

runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. A bug was found in runc prior to version 1.1.2 where `runc exec --cap` created processes with non-empty inheritable Linux process capabilities, creating an atypical Linux environment and enabling programs with inheritable file capabilities to elevate those capabilities to the permitted set during execve(2). This bug did not affect the container security sandbox as the inheritable set never contained more capabilities than were included in the container's bounding set.

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This bug has been fixed in runc 1.1.2. This fix changes `runc exec --cap` behavior such that the additional capabilities granted to the process being executed (as specified via `--cap` arguments) do not include inheritable capabilities. In addition, `runc spec` is changed to not set any inheritable capabilities in the created example OCI spec (`config.json`) file.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Fedoraproject — FedoraLinuxfoundation — Runc

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-29162",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-29162",
          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
            },
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              "automatable": "no"
            },
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          "version": "2.0.3",
          "timestamp": "2025-04-23T14:07:31.141979Z"
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        "obtainAllPrivilege": false,
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  "published": "2022-05-17T21:15:08.320",
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  "vulnStatus": "Modified",
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      "description": [
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          "lang": "en",
          "value": "CWE-276"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. A bug was found in runc prior to version 1.1.2 where `runc exec --cap` created processes with non-empty inheritable Linux process capabilities, creating an atypical Linux environment and enabling programs with inheritable file capabilities to elevate those capabilities to the permitted set during execve(2). This bug did not affect the container security sandbox as the inheritable set never contained more capabilities than were included in the container's bounding set. This bug has been fixed in runc 1.1.2. This fix changes `runc exec --cap` behavior such that the additional capabilities granted to the process being executed (as specified via `--cap` arguments) do not include inheritable capabilities. In addition, `runc spec` is changed to not set any inheritable capabilities in the created example OCI spec (`config.json`) file."
    },
    {
      "lang": "es",
      "value": "runc es una herramienta CLI para generar y ejecutar contenedores en Linux según la especificación OCI. Se encontró un bug en runc versiones anteriores a 1.1.2 en el que \"runc exec --cap\" creaba procesos con capacidades de proceso heredables de Linux no vacías, creando un entorno Linux atípico y permitiendo a programas con capacidades de archivo heredables elevar esas capacidades al conjunto permitido durante execve(2). Este error no afectaba al sandbox de seguridad del contenedor, ya que el conjunto heredable nunca contenía más capacidades que las incluidas en el conjunto delimitador del contenedor. Este error ha sido corregido en runc versión 1.1.2. Esta corrección cambia el comportamiento de \"runc exec --cap\" de forma que las capacidades adicionales concedidas al proceso que está siendo ejecutando (especificadas por medio de los argumentos \"--cap\") no incluyen las capacidades heredables. Además, \"runc spec\" ha sido modificado para que no establezca ninguna capacidad heredable en el archivo de especificaciones OCI de ejemplo creado (\"config.json')"
    }
  ],
  "lastModified": "2026-06-17T04:39:42.730",
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