Show plain JSON{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-4194", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2023-08-06T15:05:48.734Z", "datePublished": "2023-08-07T13:19:44.215Z", "dateUpdated": "2025-07-23T22:05:43.367Z"}, "containers": {"cna": {"title": "Kernel: tap: tap_open(): correctly initialize socket uid next fix of i_uid to current_fsuid", "metrics": [{"other": {"content": {"value": "Low", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"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"}, "format": "CVSS"}], "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."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "kernel", "defaultStatus": "affected", "versions": [{"version": "0:5.14.0-362.8.1.el9_3", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:enterprise_linux:9::nfv", "cpe:/o:redhat:enterprise_linux:9::baseos", "cpe:/a:redhat:enterprise_linux:9::crb", "cpe:/a:redhat:enterprise_linux:9::appstream", "cpe:/a:redhat:enterprise_linux:9::realtime"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "kernel", "defaultStatus": "affected", "versions": [{"version": "0:5.14.0-362.8.1.el9_3", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:enterprise_linux:9::nfv", "cpe:/o:redhat:enterprise_linux:9::baseos", "cpe:/a:redhat:enterprise_linux:9::crb", "cpe:/a:redhat:enterprise_linux:9::appstream", "cpe:/a:redhat:enterprise_linux:9::realtime"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "kernel", "defaultStatus": "unaffected", "cpes": ["cpe:/o:redhat:enterprise_linux:6"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "kernel", "defaultStatus": "unaffected", "cpes": ["cpe:/o:redhat:enterprise_linux:7"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "kernel-rt", "defaultStatus": "unaffected", "cpes": ["cpe:/o:redhat:enterprise_linux:7"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "kernel", "defaultStatus": "affected", "cpes": ["cpe:/o:redhat:enterprise_linux:8"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "kernel-rt", "defaultStatus": "affected", "cpes": ["cpe:/o:redhat:enterprise_linux:8"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "kernel-rt", "defaultStatus": "affected", "cpes": ["cpe:/o:redhat:enterprise_linux:9"]}, {"vendor": "Red Hat", "product": "Red Hat Virtualization 4", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "redhat-virtualization-host", "defaultStatus": "unknown", "cpes": ["cpe:/o:redhat:rhev_hypervisor:4"]}], "references": [{"url": "https://access.redhat.com/errata/RHSA-2023:6583", "name": "RHSA-2023:6583", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/security/cve/CVE-2023-4194", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2229498", "name": "RHBZ#2229498", "tags": ["issue-tracking", "x_refsource_REDHAT"]}, {"url": "https://lore.kernel.org/all/20230731164237.48365-1-lersek@redhat.com/"}, {"url": "https://lore.kernel.org/all/20230731164237.48365-2-lersek@redhat.com/"}, {"url": "https://lore.kernel.org/all/20230731164237.48365-3-lersek@redhat.com/"}], "datePublic": "2023-08-03T00:00:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "description": "Incorrect Authorization", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "(CWE-843|CWE-863): Access of Resource Using Incompatible Type ('Type Confusion') or Incorrect Authorization", "timeline": [{"lang": "en", "time": "2023-08-06T00:00:00+00:00", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2023-08-03T00:00:00+00:00", "value": "Made public."}], "credits": [{"lang": "en", "value": "This issue was discovered by Laszlo Ersek (Red Hat)."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2025-07-23T22:05:43.367Z"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T07:17:12.333Z"}, "title": "CVE Program Container", "references": [{"url": "https://access.redhat.com/errata/RHSA-2023:6583", "name": "RHSA-2023:6583", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/security/cve/CVE-2023-4194", "tags": ["vdb-entry", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2229498", "name": "RHBZ#2229498", "tags": ["issue-tracking", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html", "tags": ["x_transferred"]}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/344H6HO6SSC4KT7PDFXSDIXKMKHISSGF/", "tags": ["x_transferred"]}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3TYLSJ2SAI7RF56ZLQ5CQWCJLVJSD73Q/", "tags": ["x_transferred"]}, {"url": "https://lore.kernel.org/all/20230731164237.48365-1-lersek@redhat.com/", "tags": ["x_transferred"]}, {"url": "https://lore.kernel.org/all/20230731164237.48365-2-lersek@redhat.com/", "tags": ["x_transferred"]}, {"url": "https://lore.kernel.org/all/20230731164237.48365-3-lersek@redhat.com/", "tags": ["x_transferred"]}, {"url": "https://security.netapp.com/advisory/ntap-20231027-0002/", "tags": ["x_transferred"]}, {"url": "https://www.debian.org/security/2023/dsa-5480", "tags": ["x_transferred"]}, {"url": "https://www.debian.org/security/2023/dsa-5492", "tags": ["x_transferred"]}]}]}}