FKIE_CVE-2016-2168

Vulnerability from fkie_nvd - Published: 2016-05-05 18:59 - Updated: 2026-06-17 00:43
Severity
6.5 (Medium) - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
The req_check_access function in the mod_authz_svn module in the httpd server in Apache Subversion before 1.8.16 and 1.9.x before 1.9.4 allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) via a crafted header in a (1) MOVE or (2) COPY request, involving an authorization check.
References
secalert@redhat.comhttp://lists.fedoraproject.org/pipermail/package-announce/2016-May/184545.html
secalert@redhat.comhttp://lists.opensuse.org/opensuse-updates/2016-05/msg00043.html
secalert@redhat.comhttp://lists.opensuse.org/opensuse-updates/2016-05/msg00044.html
secalert@redhat.comhttp://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgJet+7_MAhomFVOXPgLtewcUw9w=k9zdPCkq5tvPxVMA%40mail.gmail.com%3E
secalert@redhat.comhttp://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgfn1iKueW51EpmXzXi_URNfGNofZSgOyW1_jnSeNm5DQ%40mail.gmail.com%3E
secalert@redhat.comhttp://subversion.apache.org/security/CVE-2016-2168-advisory.txtVendor Advisory
secalert@redhat.comhttp://www.debian.org/security/2016/dsa-3561
secalert@redhat.comhttp://www.securityfocus.com/bid/89320
secalert@redhat.comhttp://www.securitytracker.com/id/1035707
secalert@redhat.comhttp://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.417496
secalert@redhat.comhttps://security.gentoo.org/glsa/201610-05
secalert@redhat.comhttps://www.oracle.com/security-alerts/cpuoct2020.html
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184545.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2016-05/msg00043.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2016-05/msg00044.html
af854a3a-2127-422b-91ae-364da2661108http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgJet+7_MAhomFVOXPgLtewcUw9w=k9zdPCkq5tvPxVMA%40mail.gmail.com%3E
af854a3a-2127-422b-91ae-364da2661108http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgfn1iKueW51EpmXzXi_URNfGNofZSgOyW1_jnSeNm5DQ%40mail.gmail.com%3E
af854a3a-2127-422b-91ae-364da2661108http://subversion.apache.org/security/CVE-2016-2168-advisory.txtVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2016/dsa-3561
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/89320
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1035707
af854a3a-2127-422b-91ae-364da2661108http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.417496
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201610-05
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuoct2020.html
Impacted products
Vendor Product Version
apache subversion *
apache subversion 1.9.0
apache subversion 1.9.1
apache subversion 1.9.2
apache subversion 1.9.3
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:subversion:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DD9BA15E-397D-4B1F-B755-8FFBBF58AE59",
              "versionEndIncluding": "1.8.15",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:apache:subversion:1.9.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "892FF423-1848-4E69-8C4C-E1972B656196",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:apache:subversion:1.9.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "9ACF37C7-8752-4A8F-B7E3-2E813C4A0DF0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:apache:subversion:1.9.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "74200C33-9505-48EB-964D-6CA28C7F6DB8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:apache:subversion:1.9.3:*:*:*:*:*:*:*",
              "matchCriteriaId": "09FBAFE7-986D-4B24-8122-FDCC380331C9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The req_check_access function in the mod_authz_svn module in the httpd server in Apache Subversion before 1.8.16 and 1.9.x before 1.9.4 allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) via a crafted header in a (1) MOVE or (2) COPY request, involving an authorization check."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n req_check_access en el m\u00f3dulo mod_authz_svn en el servidor httpd en Apache Subversion en versiones anteriores a 1.8.16 y 1.9.x en versiones anteriores a 1.9.4 permite a usuarios remotos autenticados provocar una denegaci\u00f3n de servicio (referencia a puntero NULL y ca\u00edda) a trav\u00e9s de una cabecera manipulada en una petici\u00f3n (1) MOVE o (2) COPY, involucrando una verificaci\u00f3n de autorizaci\u00f3n."
    }
  ],
  "evaluatorComment": "\u003ca href=\"http://cwe.mitre.org/data/definitions/476.html\"\u003eCWE-476: NULL Pointer Dereference\u003c/a\u003e",
  "id": "CVE-2016-2168",
  "lastModified": "2026-06-17T00:43:34.463",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2016-05-05T18:59:01.710",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184545.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://lists.opensuse.org/opensuse-updates/2016-05/msg00043.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://lists.opensuse.org/opensuse-updates/2016-05/msg00044.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgJet+7_MAhomFVOXPgLtewcUw9w=k9zdPCkq5tvPxVMA%40mail.gmail.com%3E"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgfn1iKueW51EpmXzXi_URNfGNofZSgOyW1_jnSeNm5DQ%40mail.gmail.com%3E"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://subversion.apache.org/security/CVE-2016-2168-advisory.txt"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.debian.org/security/2016/dsa-3561"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.securityfocus.com/bid/89320"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.securitytracker.com/id/1035707"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.slackware.com/security/viewer.php?l=slackware-security\u0026y=2016\u0026m=slackware-security.417496"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://security.gentoo.org/glsa/201610-05"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184545.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-updates/2016-05/msg00043.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-updates/2016-05/msg00044.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgJet+7_MAhomFVOXPgLtewcUw9w=k9zdPCkq5tvPxVMA%40mail.gmail.com%3E"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgfn1iKueW51EpmXzXi_URNfGNofZSgOyW1_jnSeNm5DQ%40mail.gmail.com%3E"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://subversion.apache.org/security/CVE-2016-2168-advisory.txt"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.debian.org/security/2016/dsa-3561"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/89320"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securitytracker.com/id/1035707"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.slackware.com/security/viewer.php?l=slackware-security\u0026y=2016\u0026m=slackware-security.417496"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://security.gentoo.org/glsa/201610-05"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.