« Back to list

CVE-2009-3616

Status: ModifiedCritical (9.9)—

Multiple use-after-free vulnerabilities in vnc.c in the VNC server in QEMU 0.10.6 and earlier might allow guest OS users to execute arbitrary code on the host OS by establishing a connection from a VNC client and then (1) disconnecting during data transfer, (2) sending a message using incorrect integer data types, or (3) using the Fuzzy Screen Mode protocol, related to double free vulnerabilities.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (3)

Qemu — QemuRedhat — Enterprise Linux ServerRedhat — Enterprise Linux Workstation

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2009-3616",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 8.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 9.9,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 3.1
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2009-10-23T18:30:00.390",
  "references": [
    {
      "url": "http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=198a0039c5",
      "tags": [
        "Broken Link",
        "Exploit"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=753b405331",
      "tags": [
        "Broken Link",
        "Exploit"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://marc.info/?l=qemu-devel&m=124324043812915",
      "tags": [
        "Mailing List"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHEA-2009-1272.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2009/10/16/5",
      "tags": [
        "Mailing List",
        "Patch"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2009/10/16/8",
      "tags": [
        "Mailing List",
        "Patch"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/36716",
      "tags": [
        "Broken Link",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=501131",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=505641",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=508567",
      "tags": [
        "Issue Tracking"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=198a0039c5",
      "tags": [
        "Broken Link",
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=753b405331",
      "tags": [
        "Broken Link",
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://marc.info/?l=qemu-devel&m=124324043812915",
      "tags": [
        "Mailing List"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHEA-2009-1272.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2009/10/16/5",
      "tags": [
        "Mailing List",
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2009/10/16/8",
      "tags": [
        "Mailing List",
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/36716",
      "tags": [
        "Broken Link",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=501131",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=505641",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=508567",
      "tags": [
        "Issue Tracking"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Multiple use-after-free vulnerabilities in vnc.c in the VNC server in QEMU 0.10.6 and earlier might allow guest OS users to execute arbitrary code on the host OS by establishing a connection from a VNC client and then (1) disconnecting during data transfer, (2) sending a message using incorrect integer data types, or (3) using the Fuzzy Screen Mode protocol, related to double free vulnerabilities."
    },
    {
      "lang": "es",
      "value": "Múltiples vulnerabilidades de uso anterior a la liberación en vnc.c del servidor VNC en QEMU v0.10.6 y anteriores, permite a usuarios del sistema anfitrión ejecutar código de su elección en el sistema hospedado, estableciendo una conexión desde el cliente VNC y a continuación (1) desconectando durante la transferencia de datos, (2) enviando un mensaje utilizando tipos de datos enteros incorrectos, o (3) utilizando el protocolo Fuzzy Screen Mode, relativo a una doble liberación de vulnerabilidades."
    }
  ],
  "lastModified": "2026-06-16T23:12:01.517",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "27270035-8337-4B8E-8305-951D7063F2D1",
              "versionEndIncluding": "0.10.6"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "54D669D4-6D7E-449D-80C1-28FA44F06FFE"
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D0AC5CD5-6E58-433C-9EB3-6DFE5656463E"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}