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FKIE_CVE-2017-17862

Vulnerability from fkie_nvd - Published: 2017-12-27 17:08 - Updated: 2026-06-17 01:11
Severity
5.5 (Medium) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
kernel/bpf/verifier.c in the Linux kernel through 4.14.8 ignores unreachable code, even though it would still be processed by JIT compilers. This behavior, also considered an improper branch-pruning logic issue, could possibly be used by local users for denial of service.
References
cve@mitre.orghttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c131187db2d3fa2f8bf32fdf4e9a4ef805168467Vendor Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/102325Third Party Advisory, VDB Entry
cve@mitre.orghttp://www.securitytracker.com/id/1040057Third Party Advisory, VDB Entry
cve@mitre.orghttps://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-fix-branch-pruning-logic.patch?h=stretch-securityThird Party Advisory
cve@mitre.orghttps://github.com/torvalds/linux/commit/c131187db2d3fa2f8bf32fdf4e9a4ef805168467Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3619-1/
cve@mitre.orghttps://usn.ubuntu.com/3619-2/
cve@mitre.orghttps://usn.ubuntu.com/usn/usn-3523-2/
cve@mitre.orghttps://www.debian.org/security/2017/dsa-4073Third Party Advisory
cve@mitre.orghttps://www.spinics.net/lists/stable/msg206984.htmlPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c131187db2d3fa2f8bf32fdf4e9a4ef805168467Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/102325Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1040057Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-fix-branch-pruning-logic.patch?h=stretch-securityThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/c131187db2d3fa2f8bf32fdf4e9a4ef805168467Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3619-1/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3619-2/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/usn/usn-3523-2/
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2017/dsa-4073Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.spinics.net/lists/stable/msg206984.htmlPatch, Third Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
debian debian_linux 9.0
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": "4DD5F65B-785C-436C-9177-6C16E228C08D",
              "versionEndIncluding": "4.14.8",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "kernel/bpf/verifier.c in the Linux kernel through 4.14.8 ignores unreachable code, even though it would still be processed by JIT compilers. This behavior, also considered an improper branch-pruning logic issue, could possibly be used by local users for denial of service."
    },
    {
      "lang": "es",
      "value": "kernel/bpf/verifier.c en el kernel de Linux hasta la versi\u00f3n 4.14.8 ignora el c\u00f3digo inalcanzable, incluso aunque sea procesado por compiladores en tiempo de ejecuci\u00f3n o JIT. Este comportamiento, que tambi\u00e9n se considera un problema de l\u00f3gica de poda de ramas incorrecta, podr\u00eda ser utilizado por usuarios locales para provocar una denegaci\u00f3n de servicio (DoS)."
    }
  ],
  "id": "CVE-2017-17862",
  "lastModified": "2026-06-17T01:11:47.483",
  "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"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
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  },
  "published": "2017-12-27T17:08:20.437",
  "references": [
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      "source": "cve@mitre.org",
      "tags": [
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      ],
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    {
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    },
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    {
      "source": "cve@mitre.org",
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    },
    {
      "source": "cve@mitre.org",
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    },
    {
      "source": "cve@mitre.org",
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      "url": "https://www.spinics.net/lists/stable/msg206984.html"
    },
    {
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    },
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      "tags": [
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    },
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    },
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    {
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    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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