Critical
u-boot — security advisory
An issue was discovered in Denx U-Boot before 2026.04. An integer overflow vulnerability exists in function ext4fs_get_bgdtable, the size calculation can lead to under allocation and this underallocated buffer will be used in memcpy() which could lead to arbitrary code execution, a denial of service, or other unspecified impacts.
- Products
- u-boot
- Affected versions
- 2023.01+dfsg-2, 2023.01+dfsg-2+deb12u1, 2023.01+dfsg-2+deb12u2, 2023.01+dfsg-2+deb12u3, 2023.04+dfsg-1, 2023.04~rc2+dfsg-1, 2023.04~rc5+dfsg-1, 2023.07+dfsg-1, 2023.07~rc4+dfsg-1, 2023.07~rc5+dfsg-1, 2024.01+dfsg-1, 2024.01+dfsg-2, 2024.01+dfsg-3, 2024.01+dfsg-4, 2024.01+dfsg-5, 2024.01+dfsg-6, 2024.01+dfsg-7, 2024.01~rc6+dfsg-1, 2024.01~rc6+dfsg-2, 2025.01-1, 2025.01-2, 2025.01-3, 2025.01-3+deb13u1, 2025.01-3.1, 2025.01-3.2, 2026.10~rc5-1
- Fixed versions
- Not specified
- CVEs
- CVE-2025-70293
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:55 UTC · Revision 1
Source evidence
An issue was discovered in Denx U-Boot before 2026.04. An integer overflow vulnerability exists in function ext4fs_get_bgdtable, the size calculation can lead to under allocation and this underallocated buffer will be used in memcpy() which could lead to arbitrary code execution, a denial of service, or other unspecified impacts.
osv:DEBIAN-CVE-2025-70293
u-boot
Fixed versions: Not specified
u-boot
Fixed versions: Not specified
u-boot
Fixed versions: Not specified
Complete source record
{
"id": "df326890f3b8a7a0d2ee2ff065957d51ad35738c57f4aa99e52261d8ea3e5b9d",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2025-70293",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2025-70293",
"summary": "An issue was discovered in Denx U-Boot before 2026.04. An integer overflow vulnerability exists in function ext4fs_get_bgdtable, the size calculation can lead to under allocation and this underallocated buffer will be used in memcpy() which could lead to arbitrary code execution, a denial of service, or other unspecified impacts.",
"evidence": "osv:DEBIAN-CVE-2025-70293",
"products": [
{
"name": {
"value": "u-boot",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2023.01+dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "2023.01+dfsg-2+deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "2023.01+dfsg-2+deb12u2",
"evidence": "/affected/0/versions"
},
{
"value": "2023.01+dfsg-2+deb12u3",
"evidence": "/affected/0/versions"
},
{
"value": "2023.04+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "2023.04~rc2+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "2023.04~rc5+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "2023.07+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "2023.07~rc4+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "2023.07~rc5+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "2024.01+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "2024.01+dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "2024.01+dfsg-3",
"evidence": "/affected/0/versions"
},
{
"value": "2024.01+dfsg-4",
"evidence": "/affected/0/versions"
},
{
"value": "2024.01+dfsg-5",
"evidence": "/affected/0/versions"
},
{
"value": "2024.01+dfsg-6",
"evidence": "/affected/0/versions"
},
{
"value": "2024.01+dfsg-7",
"evidence": "/affected/0/versions"
},
{
"value": "2024.01~rc6+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "2024.01~rc6+dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "2025.01-1",
"evidence": "/affected/0/versions"
},
{
"value": "2025.01-2",
"evidence": "/affected/0/versions"
},
{
"value": "2025.01-3",
"evidence": "/affected/0/versions"
},
{
"value": "2025.01-3.1",
"evidence": "/affected/0/versions"
},
{
"value": "2025.01-3.2",
"evidence": "/affected/0/versions"
},
{
"value": "2026.10~rc5-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "u-boot",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2025.01-3",
"evidence": "/affected/1/versions"
},
{
"value": "2025.01-3+deb13u1",
"evidence": "/affected/1/versions"
},
{
"value": "2025.01-3.1",
"evidence": "/affected/1/versions"
},
{
"value": "2025.01-3.2",
"evidence": "/affected/1/versions"
},
{
"value": "2026.10~rc5-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "u-boot",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2025.01-3",
"evidence": "/affected/2/versions"
},
{
"value": "2025.01-3.1",
"evidence": "/affected/2/versions"
},
{
"value": "2025.01-3.2",
"evidence": "/affected/2/versions"
},
{
"value": "2026.10~rc5-1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "critical",
"structured": {
"id": "DEBIAN-CVE-2025-70293",
"aliases": [
"DEBIAN-CVE-2025-70293"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "u-boot",
"purl": "pkg:deb/debian/u-boot?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"2023.01+dfsg-2",
"2023.01+dfsg-2+deb12u1",
"2023.01+dfsg-2+deb12u2",
"2023.01+dfsg-2+deb12u3",
"2023.04+dfsg-1",
"2023.04~rc2+dfsg-1",
"2023.04~rc5+dfsg-1",
"2023.07+dfsg-1",
"2023.07~rc4+dfsg-1",
"2023.07~rc5+dfsg-1",
"2024.01+dfsg-1",
"2024.01+dfsg-2",
"2024.01+dfsg-3",
"2024.01+dfsg-4",
"2024.01+dfsg-5",
"2024.01+dfsg-6",
"2024.01+dfsg-7",
"2024.01~rc6+dfsg-1",
"2024.01~rc6+dfsg-2",
"2025.01-1",
"2025.01-2",
"2025.01-3",
"2025.01-3.1",
"2025.01-3.2",
"2026.10~rc5-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-70293.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "u-boot",
"purl": "pkg:deb/debian/u-boot?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"2025.01-3",
"2025.01-3+deb13u1",
"2025.01-3.1",
"2025.01-3.2",
"2026.10~rc5-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-70293.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "u-boot",
"purl": "pkg:deb/debian/u-boot?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2025.01-3",
"2025.01-3.1",
"2025.01-3.2",
"2026.10~rc5-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-70293.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-27T10:00:07.571722624Z",
"provider": "osv",
"upstream": [
"CVE-2025-70293"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2025-70293"
]
},
"related_cves": [
{
"value": "CVE-2025-70293",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 461477,
"published_at": "2026-08-26T20:16:59.697+00:00"
}