{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2023-4194", "ASSIGNER": "secalert@redhat.com", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "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." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "Incorrect Authorization", "cweId": "CWE-863" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Red Hat", "product": { "product_data": [ { "product_name": "Red Hat Enterprise Linux 9", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "version": "0:5.14.0-362.8.1.el9_3", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "defaultStatus": "affected" } }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "version": "0:5.14.0-362.8.1.el9_3", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "defaultStatus": "affected" } }, { "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" } } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://access.redhat.com/errata/RHSA-2023:6583", "refsource": "MISC", "name": "https://access.redhat.com/errata/RHSA-2023:6583" }, { "url": "https://access.redhat.com/security/cve/CVE-2023-4194", "refsource": "MISC", "name": "https://access.redhat.com/security/cve/CVE-2023-4194" }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2229498", "refsource": "MISC", "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2229498" }, { "url": "https://lore.kernel.org/all/20230731164237.48365-1-lersek@redhat.com/", "refsource": "MISC", "name": "https://lore.kernel.org/all/20230731164237.48365-1-lersek@redhat.com/" }, { "url": "https://lore.kernel.org/all/20230731164237.48365-2-lersek@redhat.com/", "refsource": "MISC", "name": "https://lore.kernel.org/all/20230731164237.48365-2-lersek@redhat.com/" }, { "url": "https://lore.kernel.org/all/20230731164237.48365-3-lersek@redhat.com/", "refsource": "MISC", "name": "https://lore.kernel.org/all/20230731164237.48365-3-lersek@redhat.com/" } ] }, "credits": [ { "lang": "en", "value": "This issue was discovered by Laszlo Ersek (Red Hat)." } ], "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" } ] } }