CVE-2009-4895 (GCVE-0-2009-4895)

Vulnerability from cvelistv5 – Published: 2010-09-08 19:00 – Updated: 2024-08-07 07:17
VLAI
Summary
Race condition in the tty_fasync function in drivers/char/tty_io.c in the Linux kernel before 2.6.32.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via unknown vectors, related to the put_tty_queue and __f_setown functions. NOTE: the vulnerability was addressed in a different way in 2.6.32.9.
Severity
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
mitre CNA under the mitre root
CNA scorecard E 29/100 over 2354 records in the last 180 days details
References
Date Public
2009-11-14 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-07T07:17:26.064Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2010/06/15/5"
          },
          {
            "name": "USN-1000-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-1000-1"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.kernel.org/show_bug.cgi?id=14605"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6"
          },
          {
            "name": "[oss-security] 20100615 CVE Request - kernel: put_tty_queue NULL pointer deref",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2010/06/15/2"
          },
          {
            "name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2010/06/15/3"
          },
          {
            "name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2010/06/15/4"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=703625118069f9f8960d356676662d3db5a9d116"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=559100"
          },
          {
            "name": "DSA-2094",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2010/dsa-2094"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2009-11-14T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Race condition in the tty_fasync function in drivers/char/tty_io.c in the Linux kernel before 2.6.32.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via unknown vectors, related to the put_tty_queue and __f_setown functions.  NOTE: the vulnerability was addressed in a different way in 2.6.32.9."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2010-09-17T09:00:00.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2010/06/15/5"
        },
        {
          "name": "USN-1000-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-1000-1"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.kernel.org/show_bug.cgi?id=14605"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6"
        },
        {
          "name": "[oss-security] 20100615 CVE Request - kernel: put_tty_queue NULL pointer deref",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2010/06/15/2"
        },
        {
          "name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2010/06/15/3"
        },
        {
          "name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2010/06/15/4"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=703625118069f9f8960d356676662d3db5a9d116"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=559100"
        },
        {
          "name": "DSA-2094",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2010/dsa-2094"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2009-4895",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Race condition in the tty_fasync function in drivers/char/tty_io.c in the Linux kernel before 2.6.32.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via unknown vectors, related to the put_tty_queue and __f_setown functions.  NOTE: the vulnerability was addressed in a different way in 2.6.32.9."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2010/06/15/5"
            },
            {
              "name": "USN-1000-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-1000-1"
            },
            {
              "name": "https://bugzilla.kernel.org/show_bug.cgi?id=14605",
              "refsource": "CONFIRM",
              "url": "https://bugzilla.kernel.org/show_bug.cgi?id=14605"
            },
            {
              "name": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6",
              "refsource": "CONFIRM",
              "url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6"
            },
            {
              "name": "[oss-security] 20100615 CVE Request - kernel: put_tty_queue NULL pointer deref",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2010/06/15/2"
            },
            {
              "name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2010/06/15/3"
            },
            {
              "name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2010/06/15/4"
            },
            {
              "name": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=703625118069f9f8960d356676662d3db5a9d116",
              "refsource": "CONFIRM",
              "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=703625118069f9f8960d356676662d3db5a9d116"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=559100",
              "refsource": "CONFIRM",
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=559100"
            },
            {
              "name": "DSA-2094",
              "refsource": "DEBIAN",
              "url": "http://www.debian.org/security/2010/dsa-2094"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2009-4895",
    "datePublished": "2010-09-08T19:00:00.000Z",
    "dateReserved": "2010-06-15T00:00:00.000Z",
    "dateUpdated": "2024-08-07T07:17:26.064Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2009-4895",
      "date": "2026-10-21",
      "epss": "0.00263",
      "percentile": "0.17125"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "C88967E3-724D-49A0-8831-8EB423661624",
                  "versionEndExcluding": "2.6.32.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "8C757774-08E7-40AA-B532-6F705C8F7639",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*",
                  "matchCriteriaId": "454A5D17-B171-4F1F-9E0B-F18D1E5CA9FD",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:*",
                  "matchCriteriaId": "7EBFE35C-E243-43D1-883D-4398D71763CC",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*",
                  "matchCriteriaId": "A5D026D0-EF78-438D-BEDD-FC8571F3ACEB",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:*",
                  "matchCriteriaId": "A2BCB73E-27BB-4878-AD9C-90C4F20C25A0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*",
                  "matchCriteriaId": "01EDA41C-6B2E-49AF-B503-EB3882265C11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:*",
                  "matchCriteriaId": "87614B58-24AB-49FB-9C84-E8DDBA16353B",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Race condition in the tty_fasync function in drivers/char/tty_io.c in the Linux kernel before 2.6.32.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via unknown vectors, related to the put_tty_queue and __f_setown functions.  NOTE: the vulnerability was addressed in a different way in 2.6.32.9."
        },
        {
          "lang": "es",
          "value": "Condici\u00f3n de carrera en la funci\u00f3n  tty_fasync en drivers/char/tty_io.c en el kernel de Linux v2.6.32.6, permite a usuarios locales provocar una denegaci\u00f3n de servicio (deferencia puntero nulo o ca\u00edda del sistema) o posiblemente tener otro impacto no especificado a trav\u00e9s de vectores desconocidos, relacionado con las funciones put_tty_queue y __f_setown. NOTA: la vulnera fue dirigida de un modo distinto en v2.6.32.9."
        }
      ],
      "id": "CVE-2009-4895",
      "lastModified": "2024-11-21T01:10:43.330",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "MEDIUM",
            "cvssData": {
              "accessComplexity": "MEDIUM",
              "accessVector": "LOCAL",
              "authentication": "NONE",
              "availabilityImpact": "COMPLETE",
              "baseScore": 4.7,
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:C",
              "version": "2.0"
            },
            "exploitabilityScore": 3.4,
            "impactScore": 6.9,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ],
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 4.7,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            },
            "exploitabilityScore": 1.0,
            "impactScore": 3.6,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2010-09-08T20:00:02.620",
      "references": [
        {
          "source": "cve@mitre.org",
          "tags": [
            "Broken Link"
          ],
          "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=703625118069f9f8960d356676662d3db5a9d116"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://www.debian.org/security/2010/dsa-2094"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Broken Link"
          ],
          "url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Mailing List",
            "Patch",
            "Third Party Advisory"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2010/06/15/2"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2010/06/15/3"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2010/06/15/4"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2010/06/15/5"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://www.ubuntu.com/usn/USN-1000-1"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Issue Tracking",
            "Patch"
          ],
          "url": "https://bugzilla.kernel.org/show_bug.cgi?id=14605"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Issue Tracking",
            "Third Party Advisory"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=559100"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Broken Link"
          ],
          "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=703625118069f9f8960d356676662d3db5a9d116"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://www.debian.org/security/2010/dsa-2094"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Broken Link"
          ],
          "url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Patch",
            "Third Party Advisory"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2010/06/15/2"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2010/06/15/3"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2010/06/15/4"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2010/06/15/5"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://www.ubuntu.com/usn/USN-1000-1"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Issue Tracking",
            "Patch"
          ],
          "url": "https://bugzilla.kernel.org/show_bug.cgi?id=14605"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Issue Tracking",
            "Third Party Advisory"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=559100"
        }
      ],
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-362"
            },
            {
              "lang": "en",
              "value": "CWE-476"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C88967E3-724D-49A0-8831-8EB423661624",
                    "versionEndExcluding": "2.6.32.6",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "8C757774-08E7-40AA-B532-6F705C8F7639",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*",
                    "matchCriteriaId": "454A5D17-B171-4F1F-9E0B-F18D1E5CA9FD",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:*",
                    "matchCriteriaId": "7EBFE35C-E243-43D1-883D-4398D71763CC",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A5D026D0-EF78-438D-BEDD-FC8571F3ACEB",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A2BCB73E-27BB-4878-AD9C-90C4F20C25A0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*",
                    "matchCriteriaId": "01EDA41C-6B2E-49AF-B503-EB3882265C11",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:*",
                    "matchCriteriaId": "87614B58-24AB-49FB-9C84-E8DDBA16353B",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Race condition in the tty_fasync function in drivers/char/tty_io.c in the Linux kernel before 2.6.32.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via unknown vectors, related to the put_tty_queue and __f_setown functions.  NOTE: the vulnerability was addressed in a different way in 2.6.32.9."
          },
          {
            "lang": "es",
            "value": "Condici\u00f3n de carrera en la funci\u00f3n  tty_fasync en drivers/char/tty_io.c en el kernel de Linux v2.6.32.6, permite a usuarios locales provocar una denegaci\u00f3n de servicio (deferencia puntero nulo o ca\u00edda del sistema) o posiblemente tener otro impacto no especificado a trav\u00e9s de vectores desconocidos, relacionado con las funciones put_tty_queue y __f_setown. NOTA: la vulnera fue dirigida de un modo distinto en v2.6.32.9."
          }
        ],
        "id": "CVE-2009-4895",
        "lastModified": "2026-04-29T01:13:23.040",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "COMPLETE",
                "baseScore": 4.7,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:C",
                "version": "2.0"
              },
              "exploitabilityScore": 3.4,
              "impactScore": 6.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 4.7,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.0,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2010-09-08T20:00:02.620",
        "references": [
          {
            "source": "cve@mitre.org",
            "tags": [
              "Broken Link"
            ],
            "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=703625118069f9f8960d356676662d3db5a9d116"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.debian.org/security/2010/dsa-2094"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Broken Link"
            ],
            "url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2010/06/15/2"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2010/06/15/3"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2010/06/15/4"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2010/06/15/5"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-1000-1"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Issue Tracking",
              "Patch"
            ],
            "url": "https://bugzilla.kernel.org/show_bug.cgi?id=14605"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Issue Tracking",
              "Third Party Advisory"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=559100"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Broken Link"
            ],
            "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=703625118069f9f8960d356676662d3db5a9d116"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.debian.org/security/2010/dsa-2094"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Broken Link"
            ],
            "url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2010/06/15/2"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2010/06/15/3"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2010/06/15/4"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2010/06/15/5"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-1000-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking",
              "Patch"
            ],
            "url": "https://bugzilla.kernel.org/show_bug.cgi?id=14605"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking",
              "Third Party Advisory"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=559100"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-362"
              },
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-01-13T20:54:07+00:00",
      "cve": "CVE-2009-4895",
      "id": "CVE-2009-4895",
      "initial_release_date": "2009-12-17T00:00:00+00:00",
      "product_status:fixed": "28",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: tty-\u003epgrp races",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2009/cve-2009-4895.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2023-02-15T06:01:18Z",
      "cve": "CVE-2009-4895",
      "id": "CVE-2009-4895",
      "initial_release_date": "2023-02-15T06:01:18Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2009-4895",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2009-4895.json",
      "version": "2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.