Description
Das U-Boot from v2020.10 to v2022.07-rc3 was discovered to contain an out-of-bounds write via the function sqfs_readdir().
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 | 2022.07+dfsg-1 | — |
| Debian 13 | u-boot | 2022.07+dfsg-1 | — |
| Debian 12 | u-boot | 2022.07+dfsg-1 | — |
| Debian 11 | u-boot | 2021.01+dfsg-5+deb11u1 | DLA-4150-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | u-boot | 2022.01+dfsg-2ubuntu2.3 | USN-5764-1 |
| Ubuntu 20.04 LTS | u-boot | 2021.01+dfsg-3ubuntu0~20.04.5 | USN-5764-1 |
| Ubuntu 18.04 LTS | u-boot | 2020.10+dfsg-1ubuntu0~18.04.3 | USN-5764-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | u-boot | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | u-boot +1 | 2021.10-150400.4.11.1 | SUSE-SU-2022:2869-1 |
| SLES 15 SP3 | u-boot +1 | 2021.01-150300.7.18.1 | SUSE-SU-2022:2868-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | u-boot +41 | 2021.10-150400.4.11.1 | SUSE-SU-2022:2869-1 |
| openSUSE Leap 15.3 | u-boot +40 | 2021.01-150300.7.18.1 | SUSE-SU-2022:2868-1 |
Advisories 4
- USN-5764-1 u-boot vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-4150-1 u-boot - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2022:2868-1 Security update for u-boot SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:2869-1 Security update for u-boot SUSE / openSUSE Security Updates · Feb 4, 2026