{"api_version":"1","generated_at":"2026-04-23T04:09:28+00:00","cve":"CVE-2017-18216","urls":{"html":"https://cve.report/CVE-2017-18216","api":"https://cve.report/api/cve/CVE-2017-18216.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2017-18216","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-18216"},"summary":{"title":"CVE-2017-18216","description":"In fs/ocfs2/cluster/nodemanager.c in the Linux kernel before 4.15, local users can cause a denial of service (NULL pointer dereference and BUG) because a required mutex is not used.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2018-03-05 18:29:00","updated_at":"2018-10-30 10:29:00"},"problem_types":["CWE-476"],"metrics":[],"references":[{"url":"https://www.debian.org/security/2018/dsa-4188","name":"DSA-4188","refsource":"DEBIAN","tags":[],"title":"Debian -- Security Information -- DSA-4188-1 linux","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/3776-2/","name":"USN-3776-2","refsource":"UBUNTU","tags":[],"title":"USN-3776-2: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu security notices","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/3798-1/","name":"USN-3798-1","refsource":"UBUNTU","tags":[],"title":"USN-3798-1: Linux kernel vulnerabilities | Ubuntu security notices | Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/3776-1/","name":"USN-3776-1","refsource":"UBUNTU","tags":[],"title":"USN-3776-1: Linux kernel vulnerabilities | Ubuntu security notices","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/3798-2/","name":"USN-3798-2","refsource":"UBUNTU","tags":[],"title":"USN-3798-2: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu security notices","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://github.com/torvalds/linux/commit/853bc26a7ea39e354b9f8889ae7ad1492ffa28d2","name":"https://github.com/torvalds/linux/commit/853bc26a7ea39e354b9f8889ae7ad1492ffa28d2","refsource":"MISC","tags":["Patch","Third Party Advisory"],"title":"ocfs2: subsystem.su_mutex is required while accessing the item->ci_pa… · torvalds/linux@853bc26 · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.debian.org/security/2018/dsa-4187","name":"DSA-4187","refsource":"DEBIAN","tags":[],"title":"Debian -- Security Information -- DSA-4187-1 linux","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securityfocus.com/bid/103278","name":"103278","refsource":"BID","tags":["Third Party Advisory","VDB Entry"],"title":"Linux Kernel 'fs/ocfs2/cluster/nodemanager.c' Local Denial of Service Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html","name":"[debian-lts-announce] 20180502 [SECURITY] [DLA 1369-1] linux security update","refsource":"MLIST","tags":[],"title":"[SECURITY] [DLA 1369-1] linux security update","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=853bc26a7ea39e354b9f8889ae7ad1492ffa28d2","name":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=853bc26a7ea39e354b9f8889ae7ad1492ffa28d2","refsource":"MISC","tags":["Patch","Vendor Advisory"],"title":"kernel/git/torvalds/linux.git - Linux kernel source tree","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-18216","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18216","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2017","cve_id":"18216","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":"2017","cve_id":"18216","vulnerable":"1","versionEndIncluding":"1","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-2017-18216","qid":"159420","title":"Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9473)"},{"cve":"CVE-2017-18216","qid":"390248","title":"Oracle Managed Virtualization (VM) Server for x86 Security Update for kernel (OVMSA-2021-0035)"},{"cve":"CVE-2017-18216","qid":"670269","title":"EulerOS Security Update for kernel (EulerOS-SA-2021-1808)"},{"cve":"CVE-2017-18216","qid":"670320","title":"EulerOS Security Update for kernel (EulerOS-SA-2021-1904)"},{"cve":"CVE-2017-18216","qid":"670634","title":"EulerOS Security Update for kernel (EulerOS-SA-2021-2392)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2017-18216","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"In fs/ocfs2/cluster/nodemanager.c in the Linux kernel before 4.15, local users can cause a denial of service (NULL pointer dereference and BUG) because a required mutex is not used."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=853bc26a7ea39e354b9f8889ae7ad1492ffa28d2","refsource":"MISC","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=853bc26a7ea39e354b9f8889ae7ad1492ffa28d2"},{"name":"USN-3776-1","refsource":"UBUNTU","url":"https://usn.ubuntu.com/3776-1/"},{"name":"DSA-4187","refsource":"DEBIAN","url":"https://www.debian.org/security/2018/dsa-4187"},{"name":"USN-3776-2","refsource":"UBUNTU","url":"https://usn.ubuntu.com/3776-2/"},{"name":"103278","refsource":"BID","url":"http://www.securityfocus.com/bid/103278"},{"name":"https://github.com/torvalds/linux/commit/853bc26a7ea39e354b9f8889ae7ad1492ffa28d2","refsource":"MISC","url":"https://github.com/torvalds/linux/commit/853bc26a7ea39e354b9f8889ae7ad1492ffa28d2"},{"name":"DSA-4188","refsource":"DEBIAN","url":"https://www.debian.org/security/2018/dsa-4188"},{"name":"[debian-lts-announce] 20180502 [SECURITY] [DLA 1369-1] linux security update","refsource":"MLIST","url":"https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html"},{"name":"USN-3798-1","refsource":"UBUNTU","url":"https://usn.ubuntu.com/3798-1/"},{"name":"USN-3798-2","refsource":"UBUNTU","url":"https://usn.ubuntu.com/3798-2/"}]}},"nvd":{"publishedDate":"2018-03-05 18:29:00","lastModifiedDate":"2018-10-30 10:29:00","problem_types":["CWE-476"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":1.8,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:N/I:N/A:P","accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":2.1},"severity":"LOW","exploitabilityScore":3.9,"impactScore":2.9,"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":"4.15","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2017","CveId":"18216","Ordinal":"123999","Title":"CVE-2017-18216","CVE":"CVE-2017-18216","Year":"2017"},"notes":[{"CveYear":"2017","CveId":"18216","Ordinal":"1","NoteData":"In fs/ocfs2/cluster/nodemanager.c in the Linux kernel before 4.15, local users can cause a denial of service (NULL pointer dereference and BUG) because a required mutex is not used.","Type":"Description","Title":null},{"CveYear":"2017","CveId":"18216","Ordinal":"2","NoteData":"2018-03-05","Type":"Other","Title":"Published"},{"CveYear":"2017","CveId":"18216","Ordinal":"3","NoteData":"2018-10-30","Type":"Other","Title":"Modified"}]}}}