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CVE-2009-2911

Estado: ModificadaBaja (1.9)—

SystemTap 1.0, when the --unprivileged option is used, does not properly restrict certain data sizes, which allows local users to (1) cause a denial of service or gain privileges via a print operation with a large number of arguments that trigger a kernel stack overflow, (2) cause a denial of service via crafted DWARF expressions that trigger a kernel stack frame overflow, or (3) cause a denial of service (infinite loop) via vectors that trigger creation of large unwind tables, related to Common Information Entry (CIE) and Call Frame Instruction (CFI) records.

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)

Systemtap — Systemtap

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2009-2911",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 1.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/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": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.4,
        "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": "2009-10-22T16:30:00.217",
  "references": [
    {
      "url": "http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41633",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/37167",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://sources.redhat.com/bugzilla/show_bug.cgi?id=10750",
      "tags": [
        "Exploit"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2009/10/21/1",
      "tags": [
        "Patch"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/36778",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2009/2989",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=529175",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00627.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00793.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41633",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/37167",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://sources.redhat.com/bugzilla/show_bug.cgi?id=10750",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2009/10/21/1",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/36778",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2009/2989",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=529175",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00627.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00793.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "SystemTap 1.0, when the --unprivileged option is used, does not properly restrict certain data sizes, which allows local users to (1) cause a denial of service or gain privileges via a print operation with a large number of arguments that trigger a kernel stack overflow, (2) cause a denial of service via crafted DWARF expressions that trigger a kernel stack frame overflow, or (3) cause a denial of service (infinite loop) via vectors that trigger creation of large unwind tables, related to Common Information Entry (CIE) and Call Frame Instruction (CFI) records."
    },
    {
      "lang": "es",
      "value": "SystemTap 1.0, cuando se utiliza la opción \"--unprivileged\", no restringe adecuadamente ciertos tamaños de datos, lo que permite a usuarios locales (1) producir una denegación de servicio o ganar privilegios a través de una operación de impresión con un gran numero de argumentos que inicia un desbordamiento de ka pila del kernel, (2) producir una denegación de servicio a través de expresión DWARF manipuladas que inician un desbordamiento de la pila del kernel, o (3) producir una denegación de servicio (bucle infinito) a través de vectores que inician la creación de grandes tablas relacionadas con las entradas \"Entry Common Information\" (CIE) y \"Call Frame Instruction\" (CFI)."
    }
  ],
  "lastModified": "2026-06-16T23:10:29.267",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:systemtap:systemtap:1.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7C36C437-D28D-452A-BAF0-4A618A61920B"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}