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CVE-2013-0238

Estado: ModificadaMedia (5)—

The try_parse_v4_netmask function in hostmask.c in IRCD-Hybrid before 8.0.6 does not properly validate masks, which allows remote attackers to cause a denial of service (crash) via a mask that causes a negative number to be parsed.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Ircd-hybrid — Ircd-hybrid

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2013-0238",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2013-02-13T01:55:04.090",
  "references": [
    {
      "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=699267",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://osvdb.org/89623",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/51948",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/52106",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://svn.ircd-hybrid.org:8000/viewcvs.cgi/ircd-hybrid/trunk/src/hostmask.c?r1=1786&r2=1785&pathrev=1786",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.debian.org/security/2013/dsa-2618",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.exploit-db.com/exploits/24951",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:093",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2013/01/29/8",
      "source": "secalert@redhat.com"
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    {
      "url": "http://www.securityfocus.com/bid/57610",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/81695",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0055",
      "source": "secalert@redhat.com"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://secunia.com/advisories/51948",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/52106",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://svn.ircd-hybrid.org:8000/viewcvs.cgi/ircd-hybrid/trunk/src/hostmask.c?r1=1786&r2=1785&pathrev=1786",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2013/dsa-2618",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.exploit-db.com/exploits/24951",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:093",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2013/01/29/8",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/57610",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/81695",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0055",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The try_parse_v4_netmask function in hostmask.c in IRCD-Hybrid before 8.0.6 does not properly validate masks, which allows remote attackers to cause a denial of service (crash) via a mask that causes a negative number to be parsed."
    },
    {
      "lang": "es",
      "value": "La función try_parse_v4_netmask en hostmask.c en IRCD-Hybrid anteriores a v8.0.6 no valida adecuadamente las mascaras, lo que permite a atacantes remotos causar una denegación de servicio (caída) a través de una mascara que causa un número negativo a analizar."
    }
  ],
  "lastModified": "2026-06-16T23:49:01.840",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ircd-hybrid:ircd-hybrid:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "86C8A0C8-4746-4A32-AEAF-6E1E0DC6F91A",
              "versionEndIncluding": "8.0.5"
            },
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              "vulnerable": true,
              "matchCriteriaId": "F5CB5086-4F61-4333-AAE3-5D7A8BFC4C61"
            },
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              "criteria": "cpe:2.3:a:ircd-hybrid:ircd-hybrid:7.2.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9A014594-6C4F-44FE-AD2C-EFB68A07FBE6"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "889E8F76-753E-4E71-B905-D0A481085486"
            },
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            },
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            },
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              "matchCriteriaId": "625ACA9D-463D-40E0-B21C-AB0B5F8B5645"
            },
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              "matchCriteriaId": "53C1B4F8-3352-4972-9DCF-694741038432"
            },
            {
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          "operator": "OR"
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      ]
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}