FKIE_CVE-2018-6925

Vulnerability from fkie_nvd - Published: 2018-09-28 13:29 - Updated: 2024-11-21 04:11
Severity ?
5.5 (Medium) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In FreeBSD before 11.2-STABLE(r338986), 11.2-RELEASE-p4, 11.1-RELEASE-p15, 10.4-STABLE(r338985), and 10.4-RELEASE-p13, due to improper maintenance of IPv6 protocol control block flags through various failure paths, an unprivileged authenticated local user may be able to cause a NULL pointer dereference causing the kernel to crash.
References
secteam@freebsd.orghttps://security.FreeBSD.org/advisories/FreeBSD-EN-18:11.listen.ascPatch, Vendor Advisory
secteam@freebsd.orghttps://www.flexera.com/company/secunia-research/advisories/SR-2018-21.html
af854a3a-2127-422b-91ae-364da2661108https://security.FreeBSD.org/advisories/FreeBSD-EN-18:11.listen.ascPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.flexera.com/company/secunia-research/advisories/SR-2018-21.html
Impacted products
Vendor Product Version
freebsd freebsd *
freebsd freebsd 10.4
freebsd freebsd 10.4
freebsd freebsd 11.1
freebsd freebsd 11.2
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B7354D16-6431-43C2-97BA-EBBF482572C9",
              "versionEndExcluding": "11.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:10.4:*:*:*:*:*:*:*",
              "matchCriteriaId": "BD5B9266-A927-4F62-8742-721CE9A4C4C4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:10.4:p13:*:*:*:*:*:*",
              "matchCriteriaId": "86FDD601-4F89-4CA3-BE1A-54EA02DAC008",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.1:p15:*:*:*:*:*:*",
              "matchCriteriaId": "17D3DDDC-07B4-43ED-8E0B-FF2D293B0EE1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:*",
              "matchCriteriaId": "22365F7C-2B00-4B61-84E8-EFBA3B8CFDC0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In FreeBSD before 11.2-STABLE(r338986), 11.2-RELEASE-p4, 11.1-RELEASE-p15, 10.4-STABLE(r338985), and 10.4-RELEASE-p13, due to improper maintenance of IPv6 protocol control block flags through various failure paths, an unprivileged authenticated local user may be able to cause a NULL pointer dereference causing the kernel to crash."
    },
    {
      "lang": "es",
      "value": "En FreeBSD en versiones anteriores a la 11.2-STABLE(r338986), 11.2-RELEASE-p4, 11.1-RELEASE-p15, 10.4-STABLE(r338985) y 10.4-RELEASE-p13, debido al mantenimiento indebido de las etiquetas de bloques de control del protocolo IPv6 mediante varias rutas de error, un usuario local autenticado sin privilegios podr\u00eda provocar una desreferencia de puntero NULL que haga que el kernel se cierre inesperadamente."
    }
  ],
  "id": "CVE-2018-6925",
  "lastModified": "2024-11-21T04:11:26.110",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 4.9,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-09-28T13:29:01.033",
  "references": [
    {
      "source": "secteam@freebsd.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-EN-18:11.listen.asc"
    },
    {
      "source": "secteam@freebsd.org",
      "url": "https://www.flexera.com/company/secunia-research/advisories/SR-2018-21.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-EN-18:11.listen.asc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.flexera.com/company/secunia-research/advisories/SR-2018-21.html"
    }
  ],
  "sourceIdentifier": "secteam@freebsd.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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