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CVE-2017-11654

Status: ModifiedMedium (5.9)—

An out-of-bounds read and write flaw was found in the way SIPcrack 0.2 processed SIP traffic, because 0x00 termination of a payload array was mishandled. A remote attacker could potentially use this flaw to crash the sipdump process by generating specially crafted SIP traffic.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Sipcrack Project — Sipcrack

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2017-11654",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
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  ],
  "published": "2017-07-26T14:29:00.177",
  "references": [
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      "url": "http://openwall.com/lists/oss-security/2017/07/26/1",
      "tags": [
        "Exploit",
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
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    {
      "url": "http://www.securityfocus.com/bid/100023",
      "tags": [
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        "Third Party Advisory",
        "VDB Entry"
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      "url": "http://openwall.com/lists/oss-security/2017/07/26/1",
      "tags": [
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        "Mailing List",
        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/100023",
      "tags": [
        "Broken Link",
        "Third Party Advisory",
        "VDB Entry"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        },
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An out-of-bounds read and write flaw was found in the way SIPcrack 0.2 processed SIP traffic, because 0x00 termination of a payload array was mishandled. A remote attacker could potentially use this flaw to crash the sipdump process by generating specially crafted SIP traffic."
    },
    {
      "lang": "es",
      "value": "Se encontró un fallo de lectura y escritura fuera de límites en la manera en que SIPcrack versión 0.2 procesó el tráfico SIP, porque la terminación 0x00 de una matriz de carga útil se manejó inapropiadamente. Un atacante remoto potencialmente podría  usar este fallo para bloquear el proceso sipdump mediante la generación de tráfico SIP especialmente creado."
    }
  ],
  "lastModified": "2026-06-17T01:02:09.347",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:sipcrack_project:sipcrack:0.2:*:*:*:*:*:*:*",
              "vulnerable": true,
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          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}