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" } ] } } } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- 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.