{"id":"CVE-2021-38199","state":"PUBLISHED","title":"fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service (hanging ","description":"fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service (hanging of mounts) by arranging for those servers to be unreachable during trunking detection.","publishedAt":"2021-08-08T19:27:50.000Z","updatedAt":"2026-10-08T21:03:27.214Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4","https://github.com/torvalds/linux/commit/dd99e9f98fbf423ff6d365b37a98e8879170f17c","https://security.netapp.com/advisory/ntap-20210902-0010/","https://www.debian.org/security/2021/dsa-4978","https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html","https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html"],"weaknesses":[],"ingestedAt":"2026-10-29T19:48:49.871Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/38xxx/CVE-2021-38199.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-38199","state":"PUBLISHED","datePublished":"2021-08-08T19:27:50.000Z","dateUpdated":"2026-10-08T21:03:27.214Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2021-08-08T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service (hanging of mounts) by arranging for those servers to be unreachable during trunking detection."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4","tags":["x_refsource_MISC"]},{"url":"https://github.com/torvalds/linux/commit/dd99e9f98fbf423ff6d365b37a98e8879170f17c","tags":["x_refsource_MISC"]},{"url":"https://security.netapp.com/advisory/ntap-20210902-0010/","tags":["x_refsource_CONFIRM"]},{"url":"https://www.debian.org/security/2021/dsa-4978","name":"DSA-4978","tags":["vendor-advisory","x_refsource_DEBIAN"]},{"url":"https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html","name":"[debian-lts-announce] 20211015 [SECURITY] [DLA 2785-1] linux-4.19 security update","tags":["mailing-list","x_refsource_MLIST"]},{"url":"https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html","name":"[debian-lts-announce] 20211216 [SECURITY] [DLA 2843-1] linux security update","tags":["mailing-list","x_refsource_MLIST"]}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"mitre","dateUpdated":"2021-12-17T00:06:23.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-38199","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":"fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service (hanging of mounts) by arranging for those servers to be unreachable during trunking detection."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4","refsource":"MISC","url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4"},{"name":"https://github.com/torvalds/linux/commit/dd99e9f98fbf423ff6d365b37a98e8879170f17c","refsource":"MISC","url":"https://github.com/torvalds/linux/commit/dd99e9f98fbf423ff6d365b37a98e8879170f17c"},{"name":"https://security.netapp.com/advisory/ntap-20210902-0010/","refsource":"CONFIRM","url":"https://security.netapp.com/advisory/ntap-20210902-0010/"},{"name":"DSA-4978","refsource":"DEBIAN","url":"https://www.debian.org/security/2021/dsa-4978"},{"name":"[debian-lts-announce] 20211015 [SECURITY] [DLA 2785-1] linux-4.19 security update","refsource":"MLIST","url":"https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html"},{"name":"[debian-lts-announce] 20211216 [SECURITY] [DLA 2843-1] linux security update","refsource":"MLIST","url":"https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://github.com/torvalds/linux/commit/dd99e9f98fbf423ff6d365b37a98e8879170f17c","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20210902-0010/","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://www.debian.org/security/2021/dsa-4978","name":"DSA-4978","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html","name":"[debian-lts-announce] 20211015 [SECURITY] [DLA 2785-1] linux-4.19 security update","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html","name":"[debian-lts-announce] 20211216 [SECURITY] [DLA 2843-1] linux security update","tags":["mailing-list","x_refsource_MLIST","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T01:37:16.290Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-38199","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-08T21:00:25.929879Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-08T21:03:27.214Z"}}]}}}