High
Security advisory
The boot loader in Das U-Boot before 2021.04-rc2 mishandles use of unit addresses in a FIT.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-27138
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:42 UTC · Revision 1
Source evidence
The boot loader in Das U-Boot before 2021.04-rc2 mishandles use of unit addresses in a FIT.
osv:CVE-2021-27138
Complete source record
{
"id": "d5e83c8fde1dbeabd222aaab11e136a8d3ad994c410108da610c506fbf65f33b",
"url": "https://osv.dev/vulnerability/CVE-2021-27138",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-27138",
"summary": "The boot loader in Das U-Boot before 2021.04-rc2 mishandles use of unit addresses in a FIT.",
"evidence": "osv:CVE-2021-27138",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2021-27138",
"aliases": [
"CVE-2021-27138"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/u-boot/u-boot",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "c4fddedc48f336eabc4ce3f74940e6aa372de18c"
},
{
"introduced": "1aa9c3b9308763f9b1d3e31a02276baf98245945"
},
{
"last_affected": "1aa9c3b9308763f9b1d3e31a02276baf98245945"
},
{
"fixed": "3f04db891a353f4b127ed57279279f851c6b4917"
},
{
"fixed": "79af75f7776fc20b0d7eb6afe1e27c00fdb4b9b4"
},
{
"fixed": "b6f4c757959f8850e1299a77c8e5713da78e8ec0"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:denx:u-boot:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "2021.01"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:denx:u-boot:2021.04:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "2021.04-rc1"
},
{
"last_affected": "2021.04-rc1"
}
],
"source": "CPE_STRING"
},
{
"range": [
{
"fixed": "3f04db891a353f4b127ed57279279f851c6b4917"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
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"source": "REFERENCES_COMMIT"
},
{
"range": [
{
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}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
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"database_specific": {
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],
"modified": "2026-10-20T14:17:33.264624513Z",
"provider": "osv",
"references": [
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"https://github.com/u-boot/u-boot/commit/3f04db891a353f4b127ed57279279f851c6b4917",
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"provider_metadata": {}
},
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{
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"evidence": "/id"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388790,
"published_at": "2021-02-17T23:15:13.717+00:00"
}