{
  "id": "CVE-2019-7308",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2019-02-01T22:29:00.283",
  "lastModified": "2019-09-24T20:15:12.153",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "kernel/bpf/verifier.c in the Linux kernel before 4.20.6 performs undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, en versiones anteriores a la 4.20.6, \"kernel/bpf/verifier.c\" realiza especulaciones fuera de l\u00edmites no deseables en la aritm\u00e9tica de punteros en varias ocasiones, incluyendo casos de diferentes ramas con distintos estados o l\u00edmites que hay que sanear, conduciendo a ataques de canal lateral."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.6,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 1.1,
        "impactScore": 4.0
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N",
          "accessVector": "LOCAL",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.7
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.4,
        "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-189"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "4.19.19",
              "matchCriteriaId": "628049F8-5F0F-499C-BDD3-30487768D043"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "4.20.0",
              "versionEndExcluding": "4.20.6",
              "matchCriteriaId": "53904B23-3E55-4CEA-849C-3238A624E9D1"
            }
          ]
        }
      ]
    },
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
              "matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
              "matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
              "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*",
              "matchCriteriaId": "07C312A0-CD2C-4B9C-B064-6409B25C278F"
            }
          ]
        }
      ]
    },
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "F1E78106-58E6-4D59-990F-75DA575BFAD9"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=979d63d50c0c0f7bc537bf821e056cc9fe5abd38",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d3bd7413e0ca40b60cf60d4003246d067cafdeda",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://www.securityfocus.com/bid/106827",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1711",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.6",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/torvalds/linux/commit/979d63d50c0c0f7bc537bf821e056cc9fe5abd38",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/torvalds/linux/commit/d3bd7413e0ca40b60cf60d4003246d067cafdeda",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://support.f5.com/csp/article/K43030517",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://support.f5.com/csp/article/K43030517?utm_source=f5support&utm_medium=RSS",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://usn.ubuntu.com/3930-1/",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://usn.ubuntu.com/3930-2/",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://usn.ubuntu.com/3931-1/",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://usn.ubuntu.com/3931-2/",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ]
}