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CVE-2012-5854

Estado: ModificadaAlta (7.5)—

Heap-based buffer overflow in WeeChat 0.3.6 through 0.3.9 allows remote attackers to cause a denial of service (crash or hang) and possibly execute arbitrary code via crafted IRC colors that are not properly decoded.

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)

Flashtux — Weechat

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2012-5854",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2012-11-19T12:10:54.417",
  "references": [
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092228.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092490.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092536.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00018.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2012-11/msg00087.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://osvdb.org/87279",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/51377",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://weechat.org/security/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:136",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2012/11/12/2",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/56482",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://savannah.nongnu.org/bugs/?37704",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0330",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092228.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092490.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092536.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00018.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2012-11/msg00087.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://osvdb.org/87279",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/51377",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://weechat.org/security/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:136",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2012/11/12/2",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/56482",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://savannah.nongnu.org/bugs/?37704",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0330",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Heap-based buffer overflow in WeeChat 0.3.6 through 0.3.9 allows remote attackers to cause a denial of service (crash or hang) and possibly execute arbitrary code via crafted IRC colors that are not properly decoded."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de búfer basado en memoria dinámica en weechat v0.3.6 a hasta v0.3.9 permite a atacantes remotos provocar una denegación de servicio (caída o bloqueo) y posiblemente ejecutar código arbitrario a través de colores IRC hechos a mano que no están debidamente decodificados."
    }
  ],
  "lastModified": "2026-06-16T23:47:27.970",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:flashtux:weechat:0.3.6:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E94ADDFF-60D3-4303-97F4-D30AA5A0793C"
            },
            {
              "criteria": "cpe:2.3:a:flashtux:weechat:0.3.7:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7563DBA9-9103-4EE0-A7B6-9C477C736755"
            },
            {
              "criteria": "cpe:2.3:a:flashtux:weechat:0.3.8:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B1FAB4CE-F55B-463C-83D4-BFC4480CB0AA"
            },
            {
              "criteria": "cpe:2.3:a:flashtux:weechat:0.3.9:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F80580A7-CFEC-4635-BB41-0DE89DDFD322"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}