{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "state": "PUBLISHED", "cveId": "CVE-2021-4090", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "dateUpdated": "2026-10-14T10:04:03.126Z", "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": "2026-08-25T18:25:21.957Z" }, "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": "Linux", "product": "kernel", "packageName": "kernel", "collectionURL": "https://git.kernel.org/pub/scm/linux/kernel", "defaultStatus": "unaffected", "versions": [ { "status": "affected", "version": "5.11", "lessThan": "5.15.5", "versionType": "semver" } ] } ], "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/" }, { "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c0019b7db1d7ac62c711cda6b357a659d46428fe" } ], "problemTypes": [ { "descriptions": [ { "type": "CWE", "lang": "en", "description": "CWE-787", "cweId": "CWE-787" } ] } ], "x_generator": { "engine": "cvelib 1.8.0" } }, "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": "2026-10-14T10:04:03.126Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [ { "status": "affected", "version": "0", "lessThan": "V1.1.1", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html" } ] } ] } }