CVE-2012-3423

Estado: ModificadaAlta (7.5)—
The IcedTea-Web plugin before 1.2.1 does not properly handle NPVariant NPStrings without NUL terminators, which allows remote attackers to cause a denial of service (crash), obtain sensitive information from memory, or execute arbitrary code via a crafted Java applet.
CVSS

Versión: 2.0
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Puntuación base: 7.5
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 6.17%
Percentil entre todas las CVEs puntuadas: 93
Fecha de la puntuación: 5/10/2026
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)

Redhat — Icedtea-web
CWE

CWE-119
Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2012-3423",
  "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": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2012-08-07T21:55:01.780",
  "references": [
    {
      "url": "http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=518",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=863",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://icedtea.classpath.org/hg/release/icedtea-web-1.2/file/icedtea-web-1.2.1/NEWS",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://icedtea.classpath.org/hg/release/icedtea-web-1.2/rev/d65bd94e0ba9",
      "tags": [
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      "source": "secalert@redhat.com"
    },
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      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00003.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00004.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00005.html",
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    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00020.html",
      "source": "secalert@redhat.com"
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    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00013.html",
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    {
      "url": "http://lists.opensuse.org/opensuse-updates/2013-06/msg00101.html",
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    {
      "url": "http://rhn.redhat.com/errata/RHSA-2012-1132.html",
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    },
    {
      "url": "http://secunia.com/advisories/50089",
      "tags": [
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      "source": "secalert@redhat.com"
    },
    {
      "url": "http://security.gentoo.org/glsa/glsa-201406-32.xml",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-1521-1",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=841345",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=518",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=863",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://icedtea.classpath.org/hg/release/icedtea-web-1.2/file/icedtea-web-1.2.1/NEWS",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://icedtea.classpath.org/hg/release/icedtea-web-1.2/rev/d65bd94e0ba9",
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    },
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00005.html",
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00020.html",
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    {
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      "url": "http://lists.opensuse.org/opensuse-updates/2013-06/msg00101.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    },
    {
      "url": "http://security.gentoo.org/glsa/glsa-201406-32.xml",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-1521-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=841345",
      "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": "The IcedTea-Web plugin before 1.2.1 does not properly handle NPVariant NPStrings without NUL terminators, which allows remote attackers to cause a denial of service (crash), obtain sensitive information from memory, or execute arbitrary code via a crafted Java applet."
    },
    {
      "lang": "es",
      "value": "El complemento IcedTea-Web anterior a v1.2.1 no maneja adecuadamente los (NPVariant) (NPStrings) sin terminadores NUL, lo que permite a atacantes remotos causar una denegación de servicio (caída), obtener información sensible de la memoria, o ejecutar código arbitrario a través de un (applet) de Java manipulado."
    }
  ],
  "lastModified": "2026-06-16T23:43:11.693",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:redhat:icedtea-web:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "778D356B-5415-49CD-8005-DFC6116C0336",
              "versionEndIncluding": "1.2"
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          "operator": "OR"
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  "sourceIdentifier": "secalert@redhat.com"
}