{
  "id": "CVE-2018-1172",
  "sourceIdentifier": "zdi-disclosures@trendmicro.com",
  "published": "2018-05-16T21:29:00.280",
  "lastModified": "2024-11-21T03:59:19.947",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "This vulnerability allows remote attackers to deny service on vulnerable installations of The Squid Software Foundation Squid 3.5.27-20180318. Authentication is not required to exploit this vulnerability. The specific flaw exists within ClientRequestContext::sslBumpAccessCheck(). A crafted request can trigger the dereference of a null pointer. An attacker can leverage this vulnerability to create a denial-of-service condition to users of the system. Was ZDI-CAN-6088."
    },
    {
      "lang": "es",
      "value": "Esta vulnerabilidad permite que atacantes remotos denieguen el servicio de instalaciones vulnerables de The Squid Software Foundation Squid 3.5.27-20180318. No se requiere autenticaci\u00f3n para explotar esta vulnerabilidad. Este error en concreto existe en ClientRequestContext::sslBumpAccessCheck(). Una petici\u00f3n manipulada puede desencadenar la desreferencia de un puntero NULL. Un atacante puede aprovechar esta vulnerabilidad para crear una condici\u00f3n de denegaci\u00f3n de servicio (DoS) a los usuarios del sistema. Anteriormente era ZDI-CAN-6088."
    }
  ],
  "metrics": {
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      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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  },
  "weaknesses": [
    {
      "source": "zdi-disclosures@trendmicro.com",
      "type": "Secondary",
      "description": [
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          "lang": "en",
          "value": "CWE-476"
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  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:squid-cache:squid:3.5.27:*:*:*:*:*:*:*",
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  "references": [
    {
      "url": "http://www.squid-cache.org/Advisories/SQUID-2018_3.txt",
      "source": "zdi-disclosures@trendmicro.com",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://zerodayinitiative.com/advisories/ZDI-18-309",
      "source": "zdi-disclosures@trendmicro.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
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    },
    {
      "url": "http://www.squid-cache.org/Advisories/SQUID-2018_3.txt",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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}