gsd-2023-4194
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 ("tun: tun_chr_open(): correctly initialize socket uid"), - 66b2c338adce ("tap: tap_open(): correctly initialize socket uid"), pass "inode->i_uid" to sock_init_data_uid() as the last parameter and that turns out to not be accurate.
Aliases
Aliases



{
  "GSD": {
    "alias": "CVE-2023-4194",
    "id": "GSD-2023-4194"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-4194"
      ],
      "details": "A flaw was found in the Linux kernel\u0027s TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 (\"tun: tun_chr_open(): correctly initialize socket uid\"), - 66b2c338adce (\"tap: tap_open(): correctly initialize socket uid\"), pass \"inode-\u003ei_uid\" to sock_init_data_uid() as the last parameter and that turns out to not be accurate.",
      "id": "GSD-2023-4194",
      "modified": "2023-12-13T01:20:27.239757Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2023-4194",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Red Hat Enterprise Linux 9",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "affected",
                            "versions": [
                              {
                                "lessThan": "*",
                                "status": "unaffected",
                                "version": "0:5.14.0-362.8.1.el9_3",
                                "versionType": "rpm"
                              }
                            ]
                          }
                        },
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "affected",
                            "versions": [
                              {
                                "lessThan": "*",
                                "status": "unaffected",
                                "version": "0:5.14.0-362.8.1.el9_3",
                                "versionType": "rpm"
                              }
                            ]
                          }
                        },
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "affected"
                          }
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Red Hat Enterprise Linux 6",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "unaffected"
                          }
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Red Hat Enterprise Linux 7",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "unaffected"
                          }
                        },
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "unaffected"
                          }
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Red Hat Enterprise Linux 8",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "affected"
                          }
                        },
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "affected"
                          }
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Red Hat Virtualization 4",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "unknown"
                          }
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Red Hat"
            }
          ]
        }
      },
      "credits": [
        {
          "lang": "en",
          "value": "This issue was discovered by Laszlo Ersek (Red Hat)."
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "A flaw was found in the Linux kernel\u0027s TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 (\"tun: tun_chr_open(): correctly initialize socket uid\"), - 66b2c338adce (\"tap: tap_open(): correctly initialize socket uid\"), pass \"inode-\u003ei_uid\" to sock_init_data_uid() as the last parameter and that turns out to not be accurate."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-843",
                "lang": "eng",
                "value": "Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://access.redhat.com/errata/RHSA-2023:6583",
            "refsource": "MISC",
            "url": "https://access.redhat.com/errata/RHSA-2023:6583"
          },
          {
            "name": "https://access.redhat.com/security/cve/CVE-2023-4194",
            "refsource": "MISC",
            "url": "https://access.redhat.com/security/cve/CVE-2023-4194"
          },
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2229498",
            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2229498"
          },
          {
            "name": "https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html",
            "refsource": "MISC",
            "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html"
          },
          {
            "name": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/344H6HO6SSC4KT7PDFXSDIXKMKHISSGF/",
            "refsource": "MISC",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/344H6HO6SSC4KT7PDFXSDIXKMKHISSGF/"
          },
          {
            "name": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3TYLSJ2SAI7RF56ZLQ5CQWCJLVJSD73Q/",
            "refsource": "MISC",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3TYLSJ2SAI7RF56ZLQ5CQWCJLVJSD73Q/"
          },
          {
            "name": "https://lore.kernel.org/all/20230731164237.48365-1-lersek@redhat.com/",
            "refsource": "MISC",
            "url": "https://lore.kernel.org/all/20230731164237.48365-1-lersek@redhat.com/"
          },
          {
            "name": "https://lore.kernel.org/all/20230731164237.48365-2-lersek@redhat.com/",
            "refsource": "MISC",
            "url": "https://lore.kernel.org/all/20230731164237.48365-2-lersek@redhat.com/"
          },
          {
            "name": "https://lore.kernel.org/all/20230731164237.48365-3-lersek@redhat.com/",
            "refsource": "MISC",
            "url": "https://lore.kernel.org/all/20230731164237.48365-3-lersek@redhat.com/"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20231027-0002/",
            "refsource": "MISC",
            "url": "https://security.netapp.com/advisory/ntap-20231027-0002/"
          },
          {
            "name": "https://www.debian.org/security/2023/dsa-5480",
            "refsource": "MISC",
            "url": "https://www.debian.org/security/2023/dsa-5480"
          },
          {
            "name": "https://www.debian.org/security/2023/dsa-5492",
            "refsource": "MISC",
            "url": "https://www.debian.org/security/2023/dsa-5492"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "F00BF2C1-0500-4712-B517-B12DFF57ADE8",
                    "versionEndIncluding": "6.4",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "0B3E6E4D-E24E-4630-B00C-8C9901C597B0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "E4A01A71-0F09-4DB2-A02F-7EFFBE27C98D",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:*",
                    "matchCriteriaId": "F5608371-157A-4318-8A2E-4104C3467EA1",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:*",
                    "matchCriteriaId": "2226A776-DF8C-49E0-A030-0A7853BB018A",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E30D0E6F-4AE8-4284-8716-991DFA48CC5D",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*",
                    "matchCriteriaId": "CC559B26-5DFC-4B7A-A27C-B77DE755DFF9",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "46D69DCC-AE4D-4EA5-861C-D60951444C6C",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "A flaw was found in the Linux kernel\u0027s TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 (\"tun: tun_chr_open(): correctly initialize socket uid\"), - 66b2c338adce (\"tap: tap_open(): correctly initialize socket uid\"), pass \"inode-\u003ei_uid\" to sock_init_data_uid() as the last parameter and that turns out to not be accurate."
          },
          {
            "lang": "es",
            "value": "Se ha encontrado un fallo en la funcionalidad TUN/TAP del kernel de Linux. Este problema podr\u00eda permitir a un usuario local eludir los filtros de red y obtener acceso no autorizado a algunos recursos. Los parches originales que solucionan CVE-2023-1076 son incorrectos o incompletos. El problema es que los siguientes commits upstream - a096ccca6e50 (\"tun: tun_chr_open(): inicializar correctamente el uid del socket\"), - 66b2c338adce (\"tap: tap_open(): inicializar correctamente el uid del socket\"), pasan \"inode-\u0026gt;i_uid\" a sock_init_data_uid() como \u00faltimo par\u00e1metro y resulta que no es correcto."
          }
        ],
        "id": "CVE-2023-4194",
        "lastModified": "2024-03-26T16:15:09.253",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "NONE",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "NONE",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "secalert@redhat.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2023-08-07T14:15:11.743",
        "references": [
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2023:6583"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2023-4194"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Issue Tracking",
              "Third Party Advisory"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2229498"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/344H6HO6SSC4KT7PDFXSDIXKMKHISSGF/"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3TYLSJ2SAI7RF56ZLQ5CQWCJLVJSD73Q/"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://lore.kernel.org/all/20230731164237.48365-1-lersek@redhat.com/"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://lore.kernel.org/all/20230731164237.48365-2-lersek@redhat.com/"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://lore.kernel.org/all/20230731164237.48365-3-lersek@redhat.com/"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20231027-0002/"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.debian.org/security/2023/dsa-5480"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.debian.org/security/2023/dsa-5492"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-843"
              },
              {
                "lang": "en",
                "value": "CWE-863"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-843"
              }
            ],
            "source": "secalert@redhat.com",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.