{"api_version":"1","generated_at":"2026-04-23T00:18:47+00:00","cve":"CVE-2023-39189","urls":{"html":"https://cve.report/CVE-2023-39189","api":"https://cve.report/api/cve/CVE-2023-39189.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-39189","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-39189"},"summary":{"title":"CVE-2023-39189","description":"A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure.","state":"PUBLIC","assigner":"secalert@redhat.com","published_at":"2023-10-09 18:15:00","updated_at":"2023-11-07 04:17:00"},"problem_types":["CWE-125"],"metrics":[],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2023-39189","name":"https://access.redhat.com/security/cve/CVE-2023-39189","refsource":"MISC","tags":[],"title":"cve-details","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2226777","name":"https://bugzilla.redhat.com/show_bug.cgi?id=2226777","refsource":"MISC","tags":[],"title":"2226777 – (CVE-2023-39189, ZDI-CAN-18745) CVE-2023-39189 kernel: netfilter: nftables out-of-bounds read in nf_osf_match_one()","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-39189","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-39189","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2023","cve_id":"39189","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"38","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"39189","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"39189","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"redhat","cpe5":"enterprise_linux","cpe6":"8.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"39189","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"redhat","cpe5":"enterprise_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2023-39189","qid":"199881","title":"Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-6461-1)"},{"cve":"CVE-2023-39189","qid":"199936","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6494-1)"},{"cve":"CVE-2023-39189","qid":"199970","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6494-2)"},{"cve":"CVE-2023-39189","qid":"199976","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6534-1)"},{"cve":"CVE-2023-39189","qid":"199979","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6532-1)"},{"cve":"CVE-2023-39189","qid":"199980","title":"Ubuntu Security Notification for Linux kernel Vulnerability (USN-6536-1)"},{"cve":"CVE-2023-39189","qid":"199982","title":"Ubuntu Security Notification for Linux kernel (GCP) Vulnerability (USN-6537-1)"},{"cve":"CVE-2023-39189","qid":"199996","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6549-1)"},{"cve":"CVE-2023-39189","qid":"199997","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6548-1)"},{"cve":"CVE-2023-39189","qid":"199999","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6548-2)"},{"cve":"CVE-2023-39189","qid":"200002","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6534-2)"},{"cve":"CVE-2023-39189","qid":"200003","title":"Ubuntu Security Notification for Linux kernel (GKE) Vulnerabilities (USN-6549-2)"},{"cve":"CVE-2023-39189","qid":"200006","title":"Ubuntu Security Notification for Linux kernel (Oracle) Vulnerabilities (USN-6548-3)"},{"cve":"CVE-2023-39189","qid":"200007","title":"Ubuntu Security Notification for Linux kernel (Low Latency) Vulnerabilities (USN-6549-3)"},{"cve":"CVE-2023-39189","qid":"200010","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6534-3)"},{"cve":"CVE-2023-39189","qid":"200024","title":"Ubuntu Security Notification for Linux kernel (Intel IoTG) Vulnerabilities (USN-6549-4)"},{"cve":"CVE-2023-39189","qid":"200035","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6549-5)"},{"cve":"CVE-2023-39189","qid":"200037","title":"Ubuntu Security Notification for Linux kernel (IoT) Vulnerabilities (USN-6548-5)"},{"cve":"CVE-2023-39189","qid":"200113","title":"Ubuntu Security Notification for Linux kernel (GCP) Vulnerabilities (USN-6635-1)"},{"cve":"CVE-2023-39189","qid":"6000429","title":"Debian Security Update for linux (DLA 3710-1)"},{"cve":"CVE-2023-39189","qid":"673534","title":"EulerOS Security Update for kernel (EulerOS-SA-2024-1086)"},{"cve":"CVE-2023-39189","qid":"673595","title":"EulerOS Security Update for kernel (EulerOS-SA-2023-3247)"},{"cve":"CVE-2023-39189","qid":"673644","title":"EulerOS Security Update for kernel (EulerOS-SA-2023-3336)"},{"cve":"CVE-2023-39189","qid":"673692","title":"EulerOS Security Update for kernel (EulerOS-SA-2023-3275)"},{"cve":"CVE-2023-39189","qid":"673923","title":"EulerOS Security Update for kernel (EulerOS-SA-2024-1062)"},{"cve":"CVE-2023-39189","qid":"673995","title":"EulerOS Security Update for kernel (EulerOS-SA-2024-1275)"},{"cve":"CVE-2023-39189","qid":"674042","title":"EulerOS Security Update for kernel (EulerOS-SA-2023-3304)"},{"cve":"CVE-2023-39189","qid":"755235","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4377-1)"},{"cve":"CVE-2023-39189","qid":"755238","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4378-1)"},{"cve":"CVE-2023-39189","qid":"755240","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4375-1)"},{"cve":"CVE-2023-39189","qid":"755249","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4414-1)"},{"cve":"CVE-2023-39189","qid":"755563","title":"SUSE Security Update for the linux kernel (SUSE-SU-2023:4351-1)"},{"cve":"CVE-2023-39189","qid":"755564","title":"SUSE Security Update for the linux kernel (SUSE-SU-2023:4348-1)"},{"cve":"CVE-2023-39189","qid":"755565","title":"SUSE Security Update for the linux kernel (SUSE-SU-2023:4347-1)"},{"cve":"CVE-2023-39189","qid":"755566","title":"SUSE Security Update for the linux kernel (SUSE-SU-2023:4345-1)"},{"cve":"CVE-2023-39189","qid":"755567","title":"SUSE Security Update for the linux kernel (SUSE-SU-2023:4343-1)"},{"cve":"CVE-2023-39189","qid":"907471","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (31267)"},{"cve":"CVE-2023-39189","qid":"907589","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (31267-1)"}]},"source_records":{"cve_program":{"data_version":"4.0","data_type":"CVE","data_format":"MITRE","CVE_data_meta":{"ID":"CVE-2023-39189","ASSIGNER":"secalert@redhat.com","STATE":"PUBLIC"},"description":{"description_data":[{"lang":"eng","value":"A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Out-of-bounds Read","cweId":"CWE-125"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"n/a","product":{"product_data":[{"product_name":"kernel","version":{"version_data":[{"version_value":"not down converted","x_cve_json_5_version_data":{"versions":[{"version":"6.6-rc1","status":"unaffected"}]}}]}}]}},{"vendor_name":"Red Hat","product":{"product_data":[{"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 Enterprise Linux 9","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"}}]}}]}},{"vendor_name":"Fedora","product":{"product_data":[{"product_name":"Fedora","version":{"version_data":[{"version_value":"not down converted","x_cve_json_5_version_data":{"defaultStatus":"affected"}}]}}]}}]}},"references":{"reference_data":[{"url":"https://access.redhat.com/security/cve/CVE-2023-39189","refsource":"MISC","name":"https://access.redhat.com/security/cve/CVE-2023-39189"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2226777","refsource":"MISC","name":"https://bugzilla.redhat.com/show_bug.cgi?id=2226777"}]},"work_around":[{"lang":"en","value":"This flaw can be mitigated by preventing the affected Passive OS Fingerprinting match module (`xt_osf`) from being loaded. For instructions on how to blacklist a kernel module, please see https://access.redhat.com/solutions/41278."}],"impact":{"cvss":[{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":5.1,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L","version":"3.1"}]}},"nvd":{"publishedDate":"2023-10-09 18:15:00","lastModifiedDate":"2023-11-07 04:17:00","problem_types":["CWE-125"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":6,"baseSeverity":"MEDIUM"},"exploitabilityScore":0.8,"impactScore":5.2}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":null,"notes":[]}}}