{
"id": "GHSA-rwxr-f4qj-9x36",
"aliases": [
"CVE-2021-4090"
],
"details": "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": [],
"modified": "2026-08-25T21:31:13Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
}
],
"published": "2022-02-19T00:01:29Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4090",
"type": "ADVISORY"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2025101",
"type": "WEB"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html",
"type": "WEB"
},
{
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c0019b7db1d7ac62c711cda6b357a659d46428fe",
"type": "WEB"
},
{
"url": "https://lore.kernel.org/linux-nfs/163692036074.16710.5678362976688977923.stgit%40klimt.1015granger.net",
"type": "WEB"
},
{
"url": "https://lore.kernel.org/linux-nfs/163692036074.16710.5678362976688977923.stgit@klimt.1015granger.net",
"type": "WEB"
},
{
"url": "https://security.netapp.com/advisory/ntap-20220318-0010",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"severity": "HIGH",
"github_reviewed": false,
"nvd_published_at": "2022-02-18T18:15:00Z",
"github_reviewed_at": null
}
}