{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"state":"PUBLISHED","cveId":"CVE-2021-4090","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","assignerShortName":"redhat","dateUpdated":"2026-05-12T10:12:17.487Z","dateReserved":"2021-12-10T00:00:00.000Z","datePublished":"2022-02-18T00:00:00.000Z"},"containers":{"cna":{"providerMetadata":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2022-10-07T00:00:00.000Z"},"descriptions":[{"lang":"en","value":"An out-of-bounds (OOB) memory write flaw was found in the NFSD in the Linux kernel. Missing sanity may lead to a write beyond bmval[bmlen-1] in nfsd4_decode_bitmap4 in fs/nfsd/nfs4xdr.c. In this flaw, a local attacker with user privilege may gain access to out-of-bounds memory, leading to a system integrity and confidentiality threat."}],"affected":[{"vendor":"n/a","product":"kernel","versions":[{"version":"kernel 5.16 rc2","status":"affected"}]}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2025101"},{"url":"https://lore.kernel.org/linux-nfs/163692036074.16710.5678362976688977923.stgit%40klimt.1015granger.net/"},{"url":"https://security.netapp.com/advisory/ntap-20220318-0010/"}],"problemTypes":[{"descriptions":[{"type":"CWE","lang":"en","description":"CWE-787","cweId":"CWE-787"}]}]},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T17:16:03.753Z"},"title":"CVE Program Container","references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2025101","tags":["x_transferred"]},{"url":"https://lore.kernel.org/linux-nfs/163692036074.16710.5678362976688977923.stgit%40klimt.1015granger.net/","tags":["x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20220318-0010/","tags":["x_transferred"]}]},{"x_adpType":"supplier","providerMetadata":{"orgId":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","shortName":"siemens-SADP","dateUpdated":"2026-05-12T10:12:17.487Z"},"affected":[{"vendor":"Siemens","product":"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem","versions":[{"status":"affected","version":"0","lessThan":"*","versionType":"custom"}],"defaultStatus":"unknown"}],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html"}]}]}}