{"api_version":"1","generated_at":"2026-07-23T10:47:31+00:00","cve":"CVE-2018-20976","urls":{"html":"https://cve.report/CVE-2018-20976","api":"https://cve.report/api/cve/CVE-2018-20976.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2018-20976","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-20976"},"summary":{"title":"CVE-2018-20976","description":"An issue was discovered in fs/xfs/xfs_super.c in the Linux kernel before 4.18. A use after free exists, related to xfs_fs_fill_super failure.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2019-08-19 02:15:00","updated_at":"2023-11-07 02:56:00"},"problem_types":["CWE-416"],"metrics":[],"references":[{"url":"https://support.f5.com/csp/article/K10269585?utm_source=f5support&amp%3Butm_medium=RSS","name":"https://support.f5.com/csp/article/K10269585?utm_source=f5support&amp%3Butm_medium=RSS","refsource":"","tags":[],"title":"myF5","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://seclists.org/bugtraq/2019/Nov/11","name":"20191108 [slackware-security] Slackware 14.2 kernel (SSA:2019-311-01)","refsource":"BUGTRAQ","tags":[],"title":"Bugtraq: [slackware-security]  Slackware 14.2 kernel (SSA:2019-311-01)","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHSA-2020:0592","name":"RHSA-2020:0592","refsource":"REDHAT","tags":[],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html","name":"[debian-lts-announce] 20190925 [SECURITY] [DLA 1930-1] linux security update","refsource":"MLIST","tags":[],"title":"[SECURITY] [DLA 1930-1] linux security update","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/4144-1/","name":"USN-4144-1","refsource":"UBUNTU","tags":[],"title":"USN-4144-1: Linux kernel vulnerabilities | Ubuntu security notices","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html","name":"openSUSE-SU-2019:2181","refsource":"SUSE","tags":[],"title":"[security-announce] openSUSE-SU-2019:2181-1: important: Security update","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html","name":"[debian-lts-announce] 20200302 [SECURITY] [DLA 2114-1] linux-4.9 security update","refsource":"MLIST","tags":[],"title":"[SECURITY] [DLA 2114-1] linux-4.9 security update","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHSA-2020:0543","name":"RHSA-2020:0543","refsource":"REDHAT","tags":[],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html","name":"http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html","refsource":"MISC","tags":[],"title":"Slackware Security Advisory - Slackware 14.2 kernel Updates ≈ Packet Storm","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html","name":"openSUSE-SU-2019:2173","refsource":"SUSE","tags":[],"title":"[security-announce] openSUSE-SU-2019:2173-1: important: Security update","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c9fbd7bbc23dbdd73364be4d045e5d3612cf6e82","name":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c9fbd7bbc23dbdd73364be4d045e5d3612cf6e82","refsource":"MISC","tags":["Patch","Vendor Advisory"],"title":"kernel/git/torvalds/linux.git - Linux kernel source tree","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHSA-2020:0661","name":"RHSA-2020:0661","refsource":"REDHAT","tags":[],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://support.f5.com/csp/article/K10269585?utm_source=f5support&utm_medium=RSS","name":"https://support.f5.com/csp/article/K10269585?utm_source=f5support&utm_medium=RSS","refsource":"CONFIRM","tags":[],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html","name":"http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html","refsource":"MISC","tags":[],"title":"Kernel Live Patch Security Notice LSN-0058-1 ≈ Packet Storm","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHSA-2020:0609","name":"RHSA-2020:0609","refsource":"REDHAT","tags":[],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHSA-2020:0178","name":"RHSA-2020:0178","refsource":"REDHAT","tags":[],"title":"Red Hat Customer Portal - Access to 24x7 support and knowledge","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.netapp.com/advisory/ntap-20190905-0002/","name":"https://security.netapp.com/advisory/ntap-20190905-0002/","refsource":"CONFIRM","tags":[],"title":"August 2019 Linux Kernel Vulnerabilities in NetApp Products | NetApp Product Security","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/4145-1/","name":"USN-4145-1","refsource":"UBUNTU","tags":[],"title":"USN-4145-1: Linux kernel vulnerabilities | Ubuntu security notices","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-20976","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-20976","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2018","cve_id":"20976","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":"2018","cve_id":"20976","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":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2018-20976","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":"An issue was discovered in fs/xfs/xfs_super.c in the Linux kernel before 4.18. A use after free exists, related to xfs_fs_fill_super failure."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c9fbd7bbc23dbdd73364be4d045e5d3612cf6e82","refsource":"MISC","name":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c9fbd7bbc23dbdd73364be4d045e5d3612cf6e82"},{"refsource":"CONFIRM","name":"https://security.netapp.com/advisory/ntap-20190905-0002/","url":"https://security.netapp.com/advisory/ntap-20190905-0002/"},{"refsource":"SUSE","name":"openSUSE-SU-2019:2173","url":"http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html"},{"refsource":"SUSE","name":"openSUSE-SU-2019:2181","url":"http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html"},{"refsource":"MLIST","name":"[debian-lts-announce] 20190925 [SECURITY] [DLA 1930-1] linux security update","url":"https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html"},{"refsource":"UBUNTU","name":"USN-4144-1","url":"https://usn.ubuntu.com/4144-1/"},{"refsource":"UBUNTU","name":"USN-4145-1","url":"https://usn.ubuntu.com/4145-1/"},{"refsource":"CONFIRM","name":"https://support.f5.com/csp/article/K10269585?utm_source=f5support&utm_medium=RSS","url":"https://support.f5.com/csp/article/K10269585?utm_source=f5support&utm_medium=RSS"},{"refsource":"MISC","name":"http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html","url":"http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html"},{"refsource":"BUGTRAQ","name":"20191108 [slackware-security] Slackware 14.2 kernel (SSA:2019-311-01)","url":"https://seclists.org/bugtraq/2019/Nov/11"},{"refsource":"MISC","name":"http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html","url":"http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html"},{"refsource":"REDHAT","name":"RHSA-2020:0178","url":"https://access.redhat.com/errata/RHSA-2020:0178"},{"refsource":"REDHAT","name":"RHSA-2020:0543","url":"https://access.redhat.com/errata/RHSA-2020:0543"},{"refsource":"REDHAT","name":"RHSA-2020:0592","url":"https://access.redhat.com/errata/RHSA-2020:0592"},{"refsource":"REDHAT","name":"RHSA-2020:0609","url":"https://access.redhat.com/errata/RHSA-2020:0609"},{"refsource":"MLIST","name":"[debian-lts-announce] 20200302 [SECURITY] [DLA 2114-1] linux-4.9 security update","url":"https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html"},{"refsource":"REDHAT","name":"RHSA-2020:0661","url":"https://access.redhat.com/errata/RHSA-2020:0661"}]}},"nvd":{"publishedDate":"2019-08-19 02:15:00","lastModifiedDate":"2023-11-07 02:56:00","problem_types":["CWE-416"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/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":"4.18","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2018","CveId":"20976","Ordinal":"154522","Title":"CVE-2018-20976","CVE":"CVE-2018-20976","Year":"2018"},"notes":[{"CveYear":"2018","CveId":"20976","Ordinal":"1","NoteData":"An issue was discovered in fs/xfs/xfs_super.c in the Linux kernel before 4.18. A use after free exists, related to xfs_fs_fill_super failure.","Type":"Description","Title":null},{"CveYear":"2018","CveId":"20976","Ordinal":"2","NoteData":"2019-08-18","Type":"Other","Title":"Published"},{"CveYear":"2018","CveId":"20976","Ordinal":"3","NoteData":"2020-03-03","Type":"Other","Title":"Modified"}]}}}