{
  "id": "CVE-2015-8970",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2016-11-28T03:59:02.310",
  "lastModified": "2023-02-13T00:55:21.783",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "crypto/algif_skcipher.c in the Linux kernel before 4.4.2 does not verify that a setkey operation has been performed on an AF_ALG socket before an accept system call is processed, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted application that does not supply a key, related to the lrw_crypt function in crypto/lrw.c."
    },
    {
      "lang": "es",
      "value": "crypto/algif_skcipher.c en el kernel Linux en versiones anteriores a 4.4.2 no verifica que una operaci\u00f3n setkey haya sido llevada a cabo en un enchufe AF_ALG antes de que una llamada de sistema aceptada sea procesada, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (referencia a puntero NULO y ca\u00edda de sistema) a trav\u00e9s de una aplicaci\u00f3n manipulada que no aporta una llave, relacionado con la funci\u00f3n lrw_crypt en crypto/lrw.c."
    }
  ],
  "metrics": {
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      {
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        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ],
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          "accessVector": "LOCAL",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 4.9
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.9,
        "impactScore": 6.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "configurations": [
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      "nodes": [
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          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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  "references": [
    {
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dd504589577d8e8e70f51f997ad487a4cb6c026f",
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        "Vendor Advisory"
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    {
      "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.2",
      "source": "secalert@redhat.com",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2016/11/04/3",
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://www.securityfocus.com/bid/94217",
      "source": "secalert@redhat.com",
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    {
      "url": "https://access.redhat.com/errata/RHSA-2017:1842",
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    {
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    {
      "url": "https://groups.google.com/forum/#%21msg/syzkaller/frb2XrB5aWk/xCXzkIBcDAAJ",
      "source": "secalert@redhat.com"
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  ]
}