CVE-2021-27138

The boot loader in Das U-Boot before 2021.04-rc2 mishandles use of unit addresses in a FIT.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
mitreCNA
7.8 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AC:L/AV:L/A:H/C:H/I:H/PR:N/S:U/UI:R
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 17%
VendorProductVersion
denxu-boot
𝑥
≤ 2021.01
denxu-boot
2021.04:rc1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
u-boot
bullseye
no-dsa
buster
no-dsa
stretch
postponed
bookworm
2023.01+dfsg-2+deb12u1
fixed
sid
2024.01+dfsg-5
fixed
trixie
2024.01+dfsg-5
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
u-boot
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
ignored
groovy
ignored
focal
ignored
bionic
ignored
xenial
ignored
trusty
dne
References
https://github.com/u-boot/u-boot/commit/3f04db891a353f4b127ed57279279f851c6b4917
https://github.com/u-boot/u-boot/commit/79af75f7776fc20b0d7eb6afe1e27c00fdb4b9b4
https://github.com/u-boot/u-boot/commit/b6f4c757959f8850e1299a77c8e5713da78e8ec0
https://github.com/u-boot/u-boot/commit/3f04db891a353f4b127ed57279279f851c6b4917
https://github.com/u-boot/u-boot/commit/79af75f7776fc20b0d7eb6afe1e27c00fdb4b9b4
https://github.com/u-boot/u-boot/commit/b6f4c757959f8850e1299a77c8e5713da78e8ec0
https://lists.debian.org/debian-lts-announce/2025/09/msg00037.html