FKIE_CVE-2016-4557

Vulnerability from fkie_nvd - Published: 2016-05-23 10:59 - Updated: 2026-06-17 00:47
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
The replace_map_fd_with_map_ptr function in kernel/bpf/verifier.c in the Linux kernel before 4.5.5 does not properly maintain an fd data structure, which allows local users to gain privileges or cause a denial of service (use-after-free) via crafted BPF instructions that reference an incorrect file descriptor.
References
cve@mitre.orghttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7Vendor Advisory
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.htmlMailing List, Third Party Advisory
cve@mitre.orghttp://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5Vendor Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2016/05/06/4Mailing List, Third Party Advisory
cve@mitre.orghttps://bugs.chromium.org/p/project-zero/issues/detail?id=808Third Party Advisory
cve@mitre.orghttps://bugs.debian.org/823603Third Party Advisory
cve@mitre.orghttps://bugzilla.redhat.com/show_bug.cgi?id=1334307Issue Tracking, Third Party Advisory
cve@mitre.orghttps://github.com/torvalds/linux/commit/8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7Vendor Advisory
cve@mitre.orghttps://www.exploit-db.com/exploits/40759/Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/05/06/4Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugs.chromium.org/p/project-zero/issues/detail?id=808Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugs.debian.org/823603Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1334307Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/40759/Third Party Advisory, VDB Entry
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "854B0415-69B4-4DA9-9E3F-8C832E6D702E",
              "versionEndExcluding": "4.4.11",
              "versionStartIncluding": "4.4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4EC30B3A-B105-4482-A6B1-A5D1C79EFBA2",
              "versionEndExcluding": "4.5.5",
              "versionStartIncluding": "4.5",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The replace_map_fd_with_map_ptr function in kernel/bpf/verifier.c in the Linux kernel before 4.5.5 does not properly maintain an fd data structure, which allows local users to gain privileges or cause a denial of service (use-after-free) via crafted BPF instructions that reference an incorrect file descriptor."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n replace_map_fd_with_map_ptr en kernel/bpf/verifier.c en el kernel de Linux en versiones anteriores a 4.5.5 no mantiene correctamente una estructura de datos fd, lo que permite a usuarios locales obtener privilegios o provocar una denegaci\u00f3n de servicio (uso despu\u00e9s de liberaci\u00f3n de memoria) a trav\u00e9s de instrucciones BPF manipuladas que hacen referencia a un archivo descriptor incorrecto."
    }
  ],
  "evaluatorComment": "CWE-416: Use After Free",
  "id": "CVE-2016-4557",
  "lastModified": "2026-06-17T00:47:46.807",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2016-05-23T10:59:03.707",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7"
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    {
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    },
    {
      "source": "cve@mitre.org",
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      ],
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    },
    {
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      ],
      "url": "http://www.openwall.com/lists/oss-security/2016/05/06/4"
    },
    {
      "source": "cve@mitre.org",
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      ],
      "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=808"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      ],
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    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1334307"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      ],
      "url": "https://www.exploit-db.com/exploits/40759/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7"
    },
    {
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
    {
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    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=808"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
    {
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1334307"
    },
    {
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      "tags": [
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      ],
      "url": "https://www.exploit-db.com/exploits/40759/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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