{"api_version":"1","generated_at":"2026-04-23T02:18:55+00:00","cve":"CVE-2021-43395","urls":{"html":"https://cve.report/CVE-2021-43395","api":"https://cve.report/api/cve/CVE-2021-43395.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-43395","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-43395"},"summary":{"title":"CVE-2021-43395","description":"An issue was discovered in illumos before f859e7171bb5db34321e45585839c6c3200ebb90, OmniOS Community Edition r151038, OpenIndiana Hipster 2021.04, and SmartOS 20210923. A local unprivileged user can cause a deadlock and kernel panic via crafted rename and rmdir calls on tmpfs filesystems. Oracle Solaris 10 and 11 is also affected.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2022-12-26 06:15:00","updated_at":"2023-08-08 14:21:00"},"problem_types":["CWE-667"],"metrics":[],"references":[{"url":"https://jgardner100.wordpress.com/2022/01/20/security-heads-up/","name":"https://jgardner100.wordpress.com/2022/01/20/security-heads-up/","refsource":"MISC","tags":[],"title":"Security Heads Up | All Things illumos","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/illumos/illumos-gate/blob/b3403853e80914bd0aade9b5b605da4878078173/usr/src/uts/common/fs/tmpfs/tmp_dir.c","name":"https://github.com/illumos/illumos-gate/blob/b3403853e80914bd0aade9b5b605da4878078173/usr/src/uts/common/fs/tmpfs/tmp_dir.c","refsource":"MISC","tags":[],"title":"illumos-gate/tmp_dir.c at b3403853e80914bd0aade9b5b605da4878078173 · illumos/illumos-gate · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://illumos.topicbox.com/groups/developer/T1c9e4f27f8c2f959/security-heads-up-illumos14424","name":"https://illumos.topicbox.com/groups/developer/T1c9e4f27f8c2f959/security-heads-up-illumos14424","refsource":"CONFIRM","tags":[],"title":"Topicbox","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.tribblix.org/relnotes.html","name":"http://www.tribblix.org/relnotes.html","refsource":"CONFIRM","tags":[],"title":"Tribblix","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.oracle.com/security-alerts/cpujan2022.html","name":"https://www.oracle.com/security-alerts/cpujan2022.html","refsource":"CONFIRM","tags":[],"title":"Oracle Critical Patch Update Advisory - January 2022","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.illumos.org/issues/14424","name":"https://www.illumos.org/issues/14424","refsource":"CONFIRM","tags":[],"title":"Bug #14424: tmpfs can be induced to deadlock - illumos gate - illumos","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://github.com/illumos/illumos-gate/commit/f859e7171bb5db34321e45585839c6c3200ebb90","name":"https://github.com/illumos/illumos-gate/commit/f859e7171bb5db34321e45585839c6c3200ebb90","refsource":"CONFIRM","tags":[],"title":"14424 tmpfs can be induced to deadlock · illumos/illumos-gate@f859e71 · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/illumos/illumos-gate/blob/069654420de4aade43c63c43cd2896e66945fc8a/usr/src/uts/common/fs/tmpfs/tmp_vnops.c","name":"https://github.com/illumos/illumos-gate/blob/069654420de4aade43c63c43cd2896e66945fc8a/usr/src/uts/common/fs/tmpfs/tmp_vnops.c","refsource":"MISC","tags":[],"title":"illumos-gate/tmp_vnops.c at 069654420de4aade43c63c43cd2896e66945fc8a · illumos/illumos-gate · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://kebe.com/blog/?p=505","name":"https://kebe.com/blog/?p=505","refsource":"MISC","tags":[],"title":"Kebe Says - Dan McD's Blog» A Request to Security Researchers from illumos","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-43395","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43395","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"43395","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"illumos","cpe5":"illumos","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"43395","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"joyent","cpe5":"smartos","cpe6":"20210923","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"43395","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"omniosce","cpe5":"omnios","cpe6":"r151038","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"community","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"43395","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"openindiana","cpe5":"openindiana","cpe6":"hipster_2021.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"43395","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"oracle","cpe5":"solaris","cpe6":"10","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"43395","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"oracle","cpe5":"solaris","cpe6":"11","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"data_version":"4.0","data_type":"CVE","data_format":"MITRE","CVE_data_meta":{"ID":"CVE-2021-43395","ASSIGNER":"cve@mitre.org","STATE":"PUBLIC"},"description":{"description_data":[{"lang":"eng","value":"An issue was discovered in illumos before f859e7171bb5db34321e45585839c6c3200ebb90, OmniOS Community Edition r151038, OpenIndiana Hipster 2021.04, and SmartOS 20210923. A local unprivileged user can cause a deadlock and kernel panic via crafted rename and rmdir calls on tmpfs filesystems. Oracle Solaris 10 and 11 is also affected."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"n/a","product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a","version_affected":"?"}]}}]}}]}},"references":{"reference_data":[{"url":"https://github.com/illumos/illumos-gate/blob/069654420de4aade43c63c43cd2896e66945fc8a/usr/src/uts/common/fs/tmpfs/tmp_vnops.c","refsource":"MISC","name":"https://github.com/illumos/illumos-gate/blob/069654420de4aade43c63c43cd2896e66945fc8a/usr/src/uts/common/fs/tmpfs/tmp_vnops.c"},{"url":"https://github.com/illumos/illumos-gate/blob/b3403853e80914bd0aade9b5b605da4878078173/usr/src/uts/common/fs/tmpfs/tmp_dir.c","refsource":"MISC","name":"https://github.com/illumos/illumos-gate/blob/b3403853e80914bd0aade9b5b605da4878078173/usr/src/uts/common/fs/tmpfs/tmp_dir.c"},{"url":"https://www.oracle.com/security-alerts/cpujan2022.html","refsource":"MISC","name":"https://www.oracle.com/security-alerts/cpujan2022.html"},{"url":"http://www.tribblix.org/relnotes.html","refsource":"MISC","name":"http://www.tribblix.org/relnotes.html"},{"url":"https://jgardner100.wordpress.com/2022/01/20/security-heads-up/","refsource":"MISC","name":"https://jgardner100.wordpress.com/2022/01/20/security-heads-up/"},{"url":"https://illumos.topicbox.com/groups/developer/T1c9e4f27f8c2f959/security-heads-up-illumos14424","refsource":"MISC","name":"https://illumos.topicbox.com/groups/developer/T1c9e4f27f8c2f959/security-heads-up-illumos14424"},{"url":"https://www.illumos.org/issues/14424","refsource":"MISC","name":"https://www.illumos.org/issues/14424"},{"url":"https://github.com/illumos/illumos-gate/commit/f859e7171bb5db34321e45585839c6c3200ebb90","refsource":"MISC","name":"https://github.com/illumos/illumos-gate/commit/f859e7171bb5db34321e45585839c6c3200ebb90"},{"url":"https://kebe.com/blog/?p=505","refsource":"MISC","name":"https://kebe.com/blog/?p=505"}]}},"nvd":{"publishedDate":"2022-12-26 06:15:00","lastModifiedDate":"2023-08-08 14:21:00","problem_types":["CWE-667"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/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}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:illumos:illumos:*:*:*:*:*:*:*:*","versionEndExcluding":"2022-01-18","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:omniosce:omnios:r151038:*:*:*:community:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:openindiana:openindiana:hipster_2021.04:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:joyent:smartos:20210923:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:oracle:solaris:11:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:oracle:solaris:10:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"43395","Ordinal":"220452","Title":"CVE-2021-43395","CVE":"CVE-2021-43395","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"43395","Ordinal":"1","NoteData":"** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.","Type":"Description","Title":null}]}}}