High
u-boot — security advisory
The boot loader in Das U-Boot before 2021.04-rc2 mishandles a modified FIT.
- Products
- u-boot
- Affected versions
- 2015.04+dfsg1-2ubuntu1, 2015.10+dfsg1-2, 2015.10+dfsg1-3, 2015.10+dfsg1-4, 2016.01+dfsg1-1, 2016.01+dfsg1-1ubuntu1, 2016.01+dfsg1-2ubuntu1, 2016.01+dfsg1-2ubuntu2, 2016.01+dfsg1-2ubuntu3, 2016.01+dfsg1-2ubuntu5, 2016.01+dfsg1-2ubuntu5+esm1, 2016.01+dfsg1-2ubuntu5+esm2, 2016.03+dfsg1-6ubuntu2, 2018.07~rc3+dfsg1-0ubuntu1~18.04.1, 2018.07~rc3+dfsg1-0ubuntu2~18.04.1, 2018.07~rc3+dfsg1-0ubuntu3~18.04.1, 2019.07+dfsg-1ubuntu3, 2019.07+dfsg-1ubuntu4~18.04.1, 2019.07+dfsg-1ubuntu5, 2019.07+dfsg-1ubuntu6, 2020.10+dfsg-1ubuntu0~18.04.2, 2020.10+dfsg-1ubuntu0~18.04.3, 2020.10+dfsg-1ubuntu0~18.04.3+esm1, 2020.10+dfsg-1ubuntu0~18.04.3+esm2, 2020.10+dfsg-1ubuntu0~20.04.2, 2021.01+dfsg-3ubuntu0~20.04.1, 2021.01+dfsg-3ubuntu0~20.04.3, 2021.01+dfsg-3ubuntu0~20.04.4, 2021.01+dfsg-3ubuntu0~20.04.5, 2021.01+dfsg-3ubuntu0~20.04.6, 2021.01+dfsg-3ubuntu0~20.04.6+esm1, 2021.01+dfsg-3ubuntu0~20.04.6+esm2
- Fixed versions
- Not specified
- CVEs
- CVE-2021-27097
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:36 UTC · Revision 1
Source evidence
The boot loader in Das U-Boot before 2021.04-rc2 mishandles a modified FIT.
osv:UBUNTU-CVE-2021-27097
u-boot
Fixed versions: Not specified
u-boot
Fixed versions: Not specified
u-boot
Fixed versions: Not specified
Complete source record
{
"id": "4265539fda53b83638c11ff68fc34fa9b6d81647f27c5a4b26e4497dfc30155b",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-27097",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2021-27097",
"summary": "The boot loader in Das U-Boot before 2021.04-rc2 mishandles a modified FIT.",
"evidence": "osv:UBUNTU-CVE-2021-27097",
"products": [
{
"name": {
"value": "u-boot",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2015.04+dfsg1-2ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "2015.10+dfsg1-2",
"evidence": "/affected/0/versions"
},
{
"value": "2015.10+dfsg1-3",
"evidence": "/affected/0/versions"
},
{
"value": "2015.10+dfsg1-4",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-1",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-2ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-2ubuntu2",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-2ubuntu3",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-2ubuntu5",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-2ubuntu5+esm1",
"evidence": "/affected/0/versions"
},
{
"value": "2016.01+dfsg1-2ubuntu5+esm2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "u-boot",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2016.03+dfsg1-6ubuntu2",
"evidence": "/affected/1/versions"
},
{
"value": "2018.07~rc3+dfsg1-0ubuntu1~18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "2018.07~rc3+dfsg1-0ubuntu2~18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "2018.07~rc3+dfsg1-0ubuntu3~18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "2019.07+dfsg-1ubuntu4~18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "2020.10+dfsg-1ubuntu0~18.04.2",
"evidence": "/affected/1/versions"
},
{
"value": "2020.10+dfsg-1ubuntu0~18.04.3",
"evidence": "/affected/1/versions"
},
{
"value": "2020.10+dfsg-1ubuntu0~18.04.3+esm1",
"evidence": "/affected/1/versions"
},
{
"value": "2020.10+dfsg-1ubuntu0~18.04.3+esm2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "u-boot",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2019.07+dfsg-1ubuntu3",
"evidence": "/affected/2/versions"
},
{
"value": "2019.07+dfsg-1ubuntu5",
"evidence": "/affected/2/versions"
},
{
"value": "2019.07+dfsg-1ubuntu6",
"evidence": "/affected/2/versions"
},
{
"value": "2020.10+dfsg-1ubuntu0~20.04.2",
"evidence": "/affected/2/versions"
},
{
"value": "2021.01+dfsg-3ubuntu0~20.04.1",
"evidence": "/affected/2/versions"
},
{
"value": "2021.01+dfsg-3ubuntu0~20.04.3",
"evidence": "/affected/2/versions"
},
{
"value": "2021.01+dfsg-3ubuntu0~20.04.4",
"evidence": "/affected/2/versions"
},
{
"value": "2021.01+dfsg-3ubuntu0~20.04.5",
"evidence": "/affected/2/versions"
},
{
"value": "2021.01+dfsg-3ubuntu0~20.04.6",
"evidence": "/affected/2/versions"
},
{
"value": "2021.01+dfsg-3ubuntu0~20.04.6+esm1",
"evidence": "/affected/2/versions"
},
{
"value": "2021.01+dfsg-3ubuntu0~20.04.6+esm2",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2021-27097",
"aliases": [
"UBUNTU-CVE-2021-27097"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "u-boot",
"purl": "pkg:deb/ubuntu/u-boot?arch=source&distro=esm-infra-legacy%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"2015.04+dfsg1-2ubuntu1",
"2015.10+dfsg1-2",
"2015.10+dfsg1-3",
"2015.10+dfsg1-4",
"2016.01+dfsg1-1",
"2016.01+dfsg1-1ubuntu1",
"2016.01+dfsg1-2ubuntu1",
"2016.01+dfsg1-2ubuntu2",
"2016.01+dfsg1-2ubuntu3",
"2016.01+dfsg1-2ubuntu5",
"2016.01+dfsg1-2ubuntu5+esm1",
"2016.01+dfsg1-2ubuntu5+esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27097.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "u-boot",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-exynos",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-imx",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-omap",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-rockchip",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-rpi",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-sunxi",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-tegra",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
},
{
"binary_name": "u-boot-tools",
"binary_version": "2016.01+dfsg1-2ubuntu5+esm2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "u-boot",
"purl": "pkg:deb/ubuntu/u-boot?arch=source&distro=esm-infra%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"2016.03+dfsg1-6ubuntu2",
"2018.07~rc3+dfsg1-0ubuntu1~18.04.1",
"2018.07~rc3+dfsg1-0ubuntu2~18.04.1",
"2018.07~rc3+dfsg1-0ubuntu3~18.04.1",
"2019.07+dfsg-1ubuntu4~18.04.1",
"2020.10+dfsg-1ubuntu0~18.04.2",
"2020.10+dfsg-1ubuntu0~18.04.3",
"2020.10+dfsg-1ubuntu0~18.04.3+esm1",
"2020.10+dfsg-1ubuntu0~18.04.3+esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27097.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "u-boot",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-amlogic",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-exynos",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-imx",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-mvebu",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-omap",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-qcom",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-qemu",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-rockchip",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-rpi",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-sunxi",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-tegra",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
},
{
"binary_name": "u-boot-tools",
"binary_version": "2020.10+dfsg-1ubuntu0~18.04.3+esm2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "u-boot",
"purl": "pkg:deb/ubuntu/u-boot?arch=source&distro=esm-infra%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"2019.07+dfsg-1ubuntu3",
"2019.07+dfsg-1ubuntu5",
"2019.07+dfsg-1ubuntu6",
"2020.10+dfsg-1ubuntu0~20.04.2",
"2021.01+dfsg-3ubuntu0~20.04.1",
"2021.01+dfsg-3ubuntu0~20.04.3",
"2021.01+dfsg-3ubuntu0~20.04.4",
"2021.01+dfsg-3ubuntu0~20.04.5",
"2021.01+dfsg-3ubuntu0~20.04.6",
"2021.01+dfsg-3ubuntu0~20.04.6+esm1",
"2021.01+dfsg-3ubuntu0~20.04.6+esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27097.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "u-boot",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-amlogic",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-exynos",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-imx",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-mvebu",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-omap",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-qcom",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-qemu",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-rockchip",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-rpi",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-sifive",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-sunxi",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-tegra",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
},
{
"binary_name": "u-boot-tools",
"binary_version": "2021.01+dfsg-3ubuntu0~20.04.6+esm2"
}
]
}
}
],
"modified": "2026-10-17T12:57:12.832179399Z",
"provider": "osv",
"upstream": [
"CVE-2021-27097"
],
"references": [
"https://ubuntu.com/security/CVE-2021-27097",
"https://www.cve.org/CVERecord?id=CVE-2021-27097"
]
},
"related_cves": [
{
"value": "CVE-2021-27097",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 356921,
"published_at": "2021-02-17T23:15:00+00:00"
}