CVE-2007-4573

Estado: ModificadaAlta (7.2)—Exploit

Gravedad7.2Alta · CVSS 2.0

Probabilidad de explotación0.82 %mayor que el 57 % de las CVE

Explotación activaNono figura en el catálogo de CISA

Exploit públicoDisponiblePublicado en Exploit-DB

La funcionalidad de emulación de llamada del sistema IA32 en Linux kernel 2.4.x y 2.6.x versiones anteriores a 2.6.22.7, cuando se ejecuta en arquitecturas x86_64, no extiende a cero el registro eax después de ser usada una ruta de entrada 32bit en ptrace, lo cual podría permitir a usuarios locales, obtener privilegios al disparar un acceso fuera de límites en la tabla de llamadas del sistema utilizando el registro %RAX.

CVSS

Puntuación base: 7.2
Versión: 2.0
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.82 %
Percentil entre todas las CVEs puntuadas: 57
Fecha de la puntuación: 21/10/2026

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).

Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Publicado en Exploit-DB · Linux Kernel 2.4/2.6 (x86-64) - System Call Emulation Privilege Escalation (27/9/2007)
Publicado en Exploit-DB · Linux Kernel 2.6.x - Ptrace Privilege Escalation (21/9/2007)

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

CWE-264

Referencias

Mostrar las 78 referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2007-4573",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": true,
        "exploitabilityScore": 3.9,
        "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": "2007-09-24T22:17:00.000",
  "references": [
    {
      "url": "http://fedoranews.org/updates/FEDORA-2007-229.shtml",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35.3",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2007-12/msg00001.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lkml.org/lkml/2007/9/21/512",
      "tags": [
        "Patch"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lkml.org/lkml/2007/9/21/513",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://marc.info/?l=full-disclosure&m=119062587407908&w=2",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/26917",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/26919",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/26934",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/26953",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/26955",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/26978",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/26994",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/26995",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/27212",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/27227",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/27912",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/29058",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://securitytracker.com/id?1018748",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.debian.org/security/2007/dsa-1378",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.debian.org/security/2007/dsa-1381",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.debian.org/security/2008/dsa-1504",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.7",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:195",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:196",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2008:008",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2008:105",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.novell.com/linux/security/advisories/2007_53_kernel.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2007-0936.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2007-0937.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2007-0938.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/480451/100/0/threaded",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/480705/100/0/threaded",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/25774",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.ubuntu.com/usn/usn-518-1",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/3246",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://issues.rpath.com/browse/RPL-1754",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9735",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2007-September/msg00355.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://fedoranews.org/updates/FEDORA-2007-229.shtml",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35.3",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2007-12/msg00001.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lkml.org/lkml/2007/9/21/512",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lkml.org/lkml/2007/9/21/513",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://marc.info/?l=full-disclosure&m=119062587407908&w=2",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/26917",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/26919",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/26934",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/26953",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/26955",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/26978",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/26994",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/26995",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27212",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27227",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27912",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/29058",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://securitytracker.com/id?1018748",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2007/dsa-1378",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2007/dsa-1381",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2008/dsa-1504",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.7",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:195",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:196",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2008:008",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2008:105",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.novell.com/linux/security/advisories/2007_53_kernel.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2007-0936.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2007-0937.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2007-0938.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/480451/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/480705/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/25774",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ubuntu.com/usn/usn-518-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/3246",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://issues.rpath.com/browse/RPL-1754",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9735",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2007-September/msg00355.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": "The IA32 system call emulation functionality in Linux kernel 2.4.x and 2.6.x before 2.6.22.7, when running on the x86_64 architecture, does not zero extend the eax register after the 32bit entry path to ptrace is used, which might allow local users to gain privileges by triggering an out-of-bounds access to the system call table using the %RAX register."
    },
    {
      "lang": "es",
      "value": "La funcionalidad de emulación de llamada del sistema IA32 en Linux kernel 2.4.x y 2.6.x versiones anteriores a 2.6.22.7, cuando se ejecuta en arquitecturas x86_64, no extiende a cero el registro eax después de ser usada una ruta de entrada 32bit en ptrace, lo cual podría permitir a usuarios locales, obtener privilegios al disparar un acceso fuera de límites en la tabla de llamadas del sistema utilizando el registro %RAX."
    }
  ],
  "lastModified": "2026-06-16T22:44:21.527",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:x86_64:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "58EF3270-25F7-44A1-806E-680B6D406B1F",
              "versionEndIncluding": "2.4.35"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:x86_64:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C6C3F3CA-3C63-40C1-9BE1-27489B5AC24F",
              "versionEndIncluding": "2.6.22.6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "vendorComments": [
    {
      "comment": "This issue affected users who were running 64-bit versions of Red Hat Enterprise Linux 3, 4, or 5 on x86_64 architecture.  It did not affect users of Red Hat Enterprise Linux 2.1. \n\nUpdates are available for Red Hat Enterprise Linux 3, 4, and 5 to correct\nthis issue.  New kernel packages along with our advisory are available at\nthe URL below as well as via the Red Hat Network. http://rhn.redhat.com/errata/CVE-2007-4573.html\n",
      "lastModified": "2007-09-27T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}