{"api_version":"1","generated_at":"2026-04-23T02:24:43+00:00","cve":"CVE-2021-23134","urls":{"html":"https://cve.report/CVE-2021-23134","api":"https://cve.report/api/cve/CVE-2021-23134.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-23134","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-23134"},"summary":{"title":"CVE-2021-23134","description":"Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.","state":"PUBLIC","assigner":"psirt@paloaltonetworks.com","published_at":"2021-05-12 23:15:00","updated_at":"2023-11-07 03:30:00"},"problem_types":["CWE-416"],"metrics":[],"references":[{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LZYORWNQIHNWRFYRDXBWYWBYM46PDZEN/","name":"FEDORA-2021-286375de1e","refsource":"FEDORA","tags":[],"title":"","mime":"","httpstatus":"-1","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QALNQT4LJFVSSA3MWCIECVY4AFPP4X77/","name":"FEDORA-2021-05152dbcf5","refsource":"","tags":[],"title":"[SECURITY] Fedora 33 Update: kernel-5.11.20-200.fc33 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.netapp.com/advisory/ntap-20210625-0007/","name":"https://security.netapp.com/advisory/ntap-20210625-0007/","refsource":"CONFIRM","tags":[],"title":"CVE-2021-23134 Linux Kernel Vulnerability in NetApp Products | NetApp Product Security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d","name":"https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d","refsource":"MISC","tags":[],"title":"kernel/git/netdev/net.git - Netdev Group's networking tree","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html","name":"[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update","refsource":"MLIST","tags":[],"title":"[SECURITY] [DLA 2689-1] linux security update","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QALNQT4LJFVSSA3MWCIECVY4AFPP4X77/","name":"FEDORA-2021-05152dbcf5","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 33 Update: kernel-5.11.20-200.fc33 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZYORWNQIHNWRFYRDXBWYWBYM46PDZEN/","name":"FEDORA-2021-286375de1e","refsource":"","tags":[],"title":"[SECURITY] Fedora 34 Update: kernel-tools-5.11.20-300.fc34 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html","name":"[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update","refsource":"MLIST","tags":[],"title":"[SECURITY] [DLA 2690-1] linux-4.19 security update","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.openwall.com/lists/oss-security/2021/05/11/4","name":"https://www.openwall.com/lists/oss-security/2021/05/11/4","refsource":"MISC","tags":[],"title":"oss-security - CVE-2021-23134: Linux kernel: UAF in nfc sockets","mime":"text/x-c","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-23134","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23134","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"LEGACY","value":"Nadav Markus from Palo Alto Networks","lang":""},{"source":"LEGACY","value":"Or Cohen from Palo Alto Networks","lang":""}],"nvd_cpes":[{"cve_year":"2021","cve_id":"23134","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"23134","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"33","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"23134","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"34","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"23134","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-23134","qid":"159338","title":"Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9404)"},{"cve":"CVE-2021-23134","qid":"159339","title":"Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9406)"},{"cve":"CVE-2021-23134","qid":"159399","title":"Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9452)"},{"cve":"CVE-2021-23134","qid":"159400","title":"Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9453)"},{"cve":"CVE-2021-23134","qid":"178679","title":"Debian Security Update for linux-4.19 (DLA 2690-1)"},{"cve":"CVE-2021-23134","qid":"178680","title":"Debian Security Update for linux (DLA 2689-1)"},{"cve":"CVE-2021-23134","qid":"180133","title":"Debian Security Update for linux (CVE-2021-23134)"},{"cve":"CVE-2021-23134","qid":"198416","title":"Ubuntu Security Notification for Linux kernel vulnerabilities (USN-4997-1)"},{"cve":"CVE-2021-23134","qid":"198418","title":"Ubuntu Security Notification for Linux kernel vulnerabilities (USN-5000-1)"},{"cve":"CVE-2021-23134","qid":"198419","title":"Ubuntu Security Notification for Linux kernel (OEM) vulnerabilities (USN-5001-1)"},{"cve":"CVE-2021-23134","qid":"198425","title":"Ubuntu Security Notification for Linux kernel (KVM) vulnerabilities (USN-5000-2)"},{"cve":"CVE-2021-23134","qid":"198426","title":"Ubuntu Security Notification for Linux kernel (KVM) vulnerabilities (USN-4997-2)"},{"cve":"CVE-2021-23134","qid":"198437","title":"Ubuntu Security Notification for Linux kernel vulnerabilities (USN-5016-1) (Sequoia)"},{"cve":"CVE-2021-23134","qid":"198459","title":"Ubuntu Security Notification for Linux, Linux-aws, Linux-aws-hwe, Linux-azure, Linux-azure-4.15, Linux-gcp, (USN-5018-1)"},{"cve":"CVE-2021-23134","qid":"281159","title":"Fedora Security Update for kernel (FEDORA-2021-05152dbcf5)"},{"cve":"CVE-2021-23134","qid":"281160","title":"Fedora Security Update for kernel (FEDORA-2021-286375de1e)"},{"cve":"CVE-2021-23134","qid":"610384","title":"Google Pixel Android December 2021 Security Patch Missing"},{"cve":"CVE-2021-23134","qid":"610392","title":"Google Android January 2022 Security Patch Missing for Huawei EMUI"},{"cve":"CVE-2021-23134","qid":"670488","title":"EulerOS Security Update for kernel (EulerOS-SA-2021-2246)"},{"cve":"CVE-2021-23134","qid":"670514","title":"EulerOS Security Update for kernel (EulerOS-SA-2021-2272)"},{"cve":"CVE-2021-23134","qid":"670578","title":"EulerOS Security Update for kernel (EulerOS-SA-2021-2336)"},{"cve":"CVE-2021-23134","qid":"670634","title":"EulerOS Security Update for kernel (EulerOS-SA-2021-2392)"},{"cve":"CVE-2021-23134","qid":"750117","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1891-1)"},{"cve":"CVE-2021-23134","qid":"750118","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1890-1)"},{"cve":"CVE-2021-23134","qid":"750121","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1888-1)"},{"cve":"CVE-2021-23134","qid":"750125","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1887-1)"},{"cve":"CVE-2021-23134","qid":"750126","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1889-1)"},{"cve":"CVE-2021-23134","qid":"750139","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1913-1)"},{"cve":"CVE-2021-23134","qid":"750140","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1912-1)"},{"cve":"CVE-2021-23134","qid":"750171","title":"OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:0843-1)"},{"cve":"CVE-2021-23134","qid":"750650","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1975-1)"},{"cve":"CVE-2021-23134","qid":"750652","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1977-1)"},{"cve":"CVE-2021-23134","qid":"750673","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 17 for SLE 12 SP5) (SUSE-SU-2021:2067-1)"},{"cve":"CVE-2021-23134","qid":"750674","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 18 for SLE 12 SP5) (SUSE-SU-2021:2020-1)"},{"cve":"CVE-2021-23134","qid":"750676","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 13 for SLE 15 SP2) (SUSE-SU-2021:2027-1)"},{"cve":"CVE-2021-23134","qid":"750678","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 24 for SLE 15) (SUSE-SU-2021:2057-1)"},{"cve":"CVE-2021-23134","qid":"750741","title":"OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:0947-1)"},{"cve":"CVE-2021-23134","qid":"750762","title":"OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:1977-1)"},{"cve":"CVE-2021-23134","qid":"750766","title":"OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:1975-1)"},{"cve":"CVE-2021-23134","qid":"750864","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:2421-1)"},{"cve":"CVE-2021-23134","qid":"750880","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:2451-1)"},{"cve":"CVE-2021-23134","qid":"751688","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 37 for SLE 12 SP3) (SUSE-SU-2022:0325-1)"},{"cve":"CVE-2021-23134","qid":"751689","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 39 for SLE 12 SP3) (SUSE-SU-2022:0327-1)"},{"cve":"CVE-2021-23134","qid":"753087","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 22 for SLE 15) (SUSE-SU-2022:0255-1)"},{"cve":"CVE-2021-23134","qid":"753211","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 11 for SLE 15 SP2) (SUSE-SU-2022:0291-1)"},{"cve":"CVE-2021-23134","qid":"753257","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 23 for SLE 15) (SUSE-SU-2022:0243-1)"},{"cve":"CVE-2021-23134","qid":"753272","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 16 for SLE 12 SP5) (SUSE-SU-2022:0234-1)"},{"cve":"CVE-2021-23134","qid":"753292","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 0 for SLE 15 SP3) (SUSE-SU-2022:0293-1)"},{"cve":"CVE-2021-23134","qid":"753408","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 15 for SLE 12 SP5) (SUSE-SU-2022:0263-1)"},{"cve":"CVE-2021-23134","qid":"900096","title":"CBL-Mariner Linux Security Update for kernel 5.10.52.1"},{"cve":"CVE-2021-23134","qid":"900304","title":"CBL-Mariner Linux Security Update for kernel 5.10.57.1"},{"cve":"CVE-2021-23134","qid":"900319","title":"CBL-Mariner Linux Security Update for kernel 5.10.60.1"},{"cve":"CVE-2021-23134","qid":"901278","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (6531-1)"},{"cve":"CVE-2021-23134","qid":"902883","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (4200)"},{"cve":"CVE-2021-23134","qid":"906035","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (4200-1)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"psirt@paloaltonetworks.com","DATE_PUBLIC":"2021-05-11T11:14:00.000Z","ID":"CVE-2021-23134","STATE":"PUBLIC","TITLE":"Linux kernel llcp_sock_bind/connect use-after-free"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Linux Kernel","version":{"version_data":[{"version_affected":"<","version_value":"5.12.4"}]}}]},"vendor_name":"Linux Kernel"}]}},"credit":[{"lang":"eng","value":"Nadav Markus from Palo Alto Networks"},{"lang":"eng","value":"Or Cohen from Palo Alto Networks"}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability."}]},"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-416 Use After Free"}]}]},"references":{"reference_data":[{"name":"https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d","refsource":"MISC","url":"https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d"},{"name":"https://www.openwall.com/lists/oss-security/2021/05/11/4","refsource":"MISC","url":"https://www.openwall.com/lists/oss-security/2021/05/11/4"},{"name":"FEDORA-2021-286375de1e","refsource":"FEDORA","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LZYORWNQIHNWRFYRDXBWYWBYM46PDZEN/"},{"name":"FEDORA-2021-05152dbcf5","refsource":"FEDORA","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QALNQT4LJFVSSA3MWCIECVY4AFPP4X77/"},{"refsource":"MLIST","name":"[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update","url":"https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html"},{"refsource":"MLIST","name":"[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update","url":"https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html"},{"refsource":"CONFIRM","name":"https://security.netapp.com/advisory/ntap-20210625-0007/","url":"https://security.netapp.com/advisory/ntap-20210625-0007/"}]},"solution":[{"lang":"eng","value":"Apply the following patch:\nhttps://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d"}],"source":{"discovery":"EXTERNAL"}},"nvd":{"publishedDate":"2021-05-12 23:15:00","lastModifiedDate":"2023-11-07 03:30:00","problem_types":["CWE-416"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:P/I:P/A:P","accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":4.6},"severity":"MEDIUM","exploitabilityScore":3.9,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.12.4","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"23134","Ordinal":"197878","Title":"CVE-2021-23134","CVE":"CVE-2021-23134","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"23134","Ordinal":"1","NoteData":"Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"23134","Ordinal":"2","NoteData":"2021-05-12","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"23134","Ordinal":"3","NoteData":"2021-06-25","Type":"Other","Title":"Modified"}]}}}