{ "id": "CVE-2023-4194", "sourceIdentifier": "secalert@redhat.com", "published": "2023-08-07T14:15:11.743", "lastModified": "2024-11-21T08:34:35.687", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "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." }, { "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->i_uid\" a sock_init_data_uid() como \u00faltimo par\u00e1metro y resulta que no es correcto." } ], "metrics": { "cvssMetricV31": [ { "source": "secalert@redhat.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE" }, "exploitabilityScore": 1.8, "impactScore": 3.6 }, { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE" }, "exploitabilityScore": 1.8, "impactScore": 3.6 } ] }, "weaknesses": [ { "source": "secalert@redhat.com", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-863" } ] }, { "source": "nvd@nist.gov", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-843" }, { "lang": "en", "value": "CWE-863" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndIncluding": "6.4", "matchCriteriaId": "F00BF2C1-0500-4712-B517-B12DFF57ADE8" }, { "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" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "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" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "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" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "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" } ] } ] } ], "references": [ { "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": [ "Third Party Advisory" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2229498", "source": "secalert@redhat.com", "tags": [ "Issue Tracking", "Third Party 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": [ "Mailing List", "Patch", "Vendor Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2023:6583", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ] }, { "url": "https://access.redhat.com/security/cve/CVE-2023-4194", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2229498", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking", "Third Party Advisory" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/344H6HO6SSC4KT7PDFXSDIXKMKHISSGF/", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3TYLSJ2SAI7RF56ZLQ5CQWCJLVJSD73Q/", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "https://lore.kernel.org/all/20230731164237.48365-1-lersek@redhat.com/", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Patch", "Vendor Advisory" ] }, { "url": "https://lore.kernel.org/all/20230731164237.48365-2-lersek@redhat.com/", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Patch", "Vendor Advisory" ] }, { "url": "https://lore.kernel.org/all/20230731164237.48365-3-lersek@redhat.com/", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Patch", "Vendor Advisory" ] }, { "url": "https://security.netapp.com/advisory/ntap-20231027-0002/", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "https://www.debian.org/security/2023/dsa-5480", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "https://www.debian.org/security/2023/dsa-5492", "source": "af854a3a-2127-422b-91ae-364da2661108" } ] }