FKIE_CVE-2018-19115

Vulnerability from fkie_nvd - Published: 2018-11-08 20:29 - Updated: 2026-06-17 01:48
Severity
9.8 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
keepalived before 2.0.7 has a heap-based buffer overflow when parsing HTTP status codes resulting in DoS or possibly unspecified other impact, because extract_status_code in lib/html.c has no validation of the status code and instead writes an unlimited amount of data to the heap.
References
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2019:0022Third Party Advisory
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2019:1792
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2019:1945
cve@mitre.orghttps://bugzilla.suse.com/show_bug.cgi?id=1015141Issue Tracking, Third Party Advisory
cve@mitre.orghttps://github.com/acassen/keepalived/pull/961Patch, Third Party Advisory
cve@mitre.orghttps://github.com/acassen/keepalived/pull/961/commits/f28015671a4b04785859d1b4b1327b367b6a10e9Patch, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2018/11/msg00034.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://security.gentoo.org/glsa/201903-01Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3995-1/
cve@mitre.orghttps://usn.ubuntu.com/3995-2/
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:0022Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:1792
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:1945
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.suse.com/show_bug.cgi?id=1015141Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/acassen/keepalived/pull/961Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/acassen/keepalived/pull/961/commits/f28015671a4b04785859d1b4b1327b367b6a10e9Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/11/msg00034.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201903-01Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3995-1/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3995-2/
Impacted products
Vendor Product Version
keepalived keepalived *
debian debian_linux 8.0
redhat enterprise_linux_server 7.0
redhat enterprise_linux_server_aus 7.6
redhat enterprise_linux_server_eus 7.6
redhat enterprise_linux_server_tus 7.6
redhat enterprise_linux_workstation 7.0
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:a:keepalived:keepalived:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D7E17D71-1A1A-45D9-82E7-AA3F771BDF10",
              "versionEndExcluding": "2.0.7",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
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              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "51EF4996-72F4-4FA4-814F-F5991E7A8318",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*",
              "matchCriteriaId": "B353CE99-D57C-465B-AAB0-73EF581127D1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*",
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              "vulnerable": true
            },
            {
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              "vulnerable": true
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              "vulnerable": true
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          ],
          "negate": false,
          "operator": "OR"
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      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "keepalived before 2.0.7 has a heap-based buffer overflow when parsing HTTP status codes resulting in DoS or possibly unspecified other impact, because extract_status_code in lib/html.c has no validation of the status code and instead writes an unlimited amount of data to the heap."
    },
    {
      "lang": "es",
      "value": "keepalived hasta la versi\u00f3n 2.0.8 tiene un desbordamiento de b\u00fafer basado en memoria din\u00e1mica (heap) cuando se analizan los c\u00f3digos de estado HTTP, lo que resulta en una denegaci\u00f3n de servicio (DoS) o, posiblemente, en otro impacto indeterminado, debido a que extract_status_code en lib/html.c no tiene ninguna validaci\u00f3n del c\u00f3digo de estado y, en su lugar, escribe una cantidad ilimitada de datos en la memoria din\u00e1mica."
    }
  ],
  "id": "CVE-2018-19115",
  "lastModified": "2026-06-17T01:48:48.193",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-11-08T20:29:00.573",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://access.redhat.com/errata/RHSA-2019:0022"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://access.redhat.com/errata/RHSA-2019:1792"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://access.redhat.com/errata/RHSA-2019:1945"
    },
    {
      "source": "cve@mitre.org",
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    },
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    },
    {
      "source": "cve@mitre.org",
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    },
    {
      "source": "cve@mitre.org",
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      "url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00034.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      "url": "https://security.gentoo.org/glsa/201903-01"
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    {
      "source": "cve@mitre.org",
      "url": "https://usn.ubuntu.com/3995-1/"
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      "url": "https://usn.ubuntu.com/3995-2/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      "url": "https://access.redhat.com/errata/RHSA-2019:0022"
    },
    {
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      "url": "https://access.redhat.com/errata/RHSA-2019:1792"
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    {
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      "url": "https://access.redhat.com/errata/RHSA-2019:1945"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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    },
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    },
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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