CVE-2017-17807 (GCVE-0-2017-17807)

Vulnerability from cvelistv5 – Published: 2017-12-20 23:00 – Updated: 2024-08-05 20:59
VLAI
Summary
The KEYS subsystem in the Linux kernel before 4.14.6 omitted an access-control check when adding a key to the current task's "default request-key keyring" via the request_key() system call, allowing a local user to use a sequence of crafted system calls to add keys to a keyring with only Search permission (not Write permission) to that keyring, related to construct_get_dest_keyring() in security/keys/request_key.c.
Severity
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE
  • n/a
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2324 records in the last 180 days details
References
URL Tags
http://git.kernel.org/cgit/linux/kernel/git/torva… x_refsource_CONFIRM
http://www.securityfocus.com/bid/102301 vdb-entryx_refsource_BID
https://usn.ubuntu.com/3617-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3619-2/ vendor-advisoryx_refsource_UBUNTU
https://www.debian.org/security/2018/dsa-4082 vendor-advisoryx_refsource_DEBIAN
https://usn.ubuntu.com/3617-3/ vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2018… mailing-listx_refsource_MLIST
https://usn.ubuntu.com/3632-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3620-2/ vendor-advisoryx_refsource_UBUNTU
https://github.com/torvalds/linux/commit/4dca6ea1… x_refsource_CONFIRM
https://www.debian.org/security/2017/dsa-4073 vendor-advisoryx_refsource_DEBIAN
https://usn.ubuntu.com/3617-2/ vendor-advisoryx_refsource_UBUNTU
https://www.kernel.org/pub/linux/kernel/v4.x/Chan… x_refsource_CONFIRM
https://usn.ubuntu.com/3620-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3619-1/ vendor-advisoryx_refsource_UBUNTU
Date Public
2017-12-20 00:00
Show details on NVD website
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            "value": "The KEYS subsystem in the Linux kernel before 4.14.6 omitted an access-control check when adding a key to the current task\u0027s \"default request-key keyring\" via the request_key() system call, allowing a local user to use a sequence of crafted system calls to add keys to a keyring with only Search permission (not Write permission) to that keyring, related to construct_get_dest_keyring() in security/keys/request_key.c."
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          {
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            "value": "El subsistema KEYS en el kernel de Linux en versiones anteriores a la 4.14.6 omit\u00eda una comprobaci\u00f3n de control de acceso cuando se agregaba una clave al \"llavero de acceso por defecto\" de la tarea actual mediante la llamada al sistema request_key(), permitiendo a un usuario local utilizar una secuencia de llamadas de sistema manipuladas para a\u00f1adir claves a un llavero solo con permiso de b\u00fasqueda (no de escritura) a ese llavero. Esto est\u00e1 relacionado con construct_get_dest_keyring() en security/keys/request_key.c."
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        "id": "CVE-2017-17807",
        "lastModified": "2026-05-13T00:24:29.033",
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              "exploitabilityScore": 3.9,
              "impactScore": 2.9,
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                "confidentialityImpact": "NONE",
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                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
                "version": "3.0"
              },
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              "source": "nvd@nist.gov",
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            }
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        "published": "2017-12-20T23:29:00.423",
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    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T06:40:04+00:00",
      "cve": "CVE-2017-17807",
      "id": "CVE-2017-17807",
      "initial_release_date": "2017-12-08T00:00:00+00:00",
      "product_status:fixed": "207",
      "product_status:known_affected": "43",
      "product_status:known_not_affected": "32",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Missing permissions check for request_key() destination allows local attackers to add keys to keyring without Write permission",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-17807.json",
      "version": "3"
    },
    "suse_vex": {
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      "current_release_date": "2026-01-01T01:29:16Z",
      "cve": "CVE-2017-17807",
      "id": "CVE-2017-17807",
      "initial_release_date": "2023-02-15T04:36:30Z",
      "product_status:known_affected": "7",
      "product_status:known_not_affected": "438",
      "product_status:recommended": "13",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2017-17807",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2017-17807.json",
      "version": "22"
    }
  }
}



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