Description
The boot loader in Das U-Boot before 2021.04-rc2 mishandles a modified FIT.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | u-boot | 2021.07+dfsg-2 | — |
| Debian 13 | u-boot | 2021.07+dfsg-2 | — |
| Debian 12 | u-boot | 2021.07+dfsg-2 | — |
| Debian 11 | u-boot | 2021.01+dfsg-5+deb11u2 | DLA-4320-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | u-boot | No fix yet | — |
| Ubuntu Pro 18.04 LTS | u-boot | No fix yet | — |
| Ubuntu Pro 16.04 LTS | u-boot | No fix yet | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | u-boot | 2021.04-r0 | — |
| Alpine v3.23 | u-boot | 2021.04-r0 | — |
| Alpine v3.22 | u-boot | 2021.04-r0 | — |
| Alpine v3.21 | u-boot | 2021.04-r0 | — |
| Alpine v3.20 | u-boot | 2021.04-r0 | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | u-boot | 2021.04-r0 | — |
| Alpine v3.18 | u-boot | 2021.04-r0 | — |
| Alpine v3.17 | u-boot | 2021.04-r0 | — |
| Alpine v3.16 | u-boot | 2021.04-r0 | — |
| Alpine v3.15 | u-boot | 2021.04-r0 | — |
| Alpine v3.14 | u-boot | 2021.04-r0 | — |
Advisories 1
- DLA-4320-1 u-boot - security update Debian Security (DSA / DLA) · Oct 1, 2025