Description
An integer overflow in ext4fs_read_symlink in Das U-Boot before 2025.01-rc1 occurs for zalloc (adding one to an le32 variable) via a crafted ext4 filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| denx | U-Boot | < 2025.01-rc1 | 2025.01-rc1 |
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 | 2025.01-1 | — |
| Debian 13 | u-boot | 2025.01-1 | — |
| Debian 12 | u-boot | 2023.01+dfsg-2+deb12u2 | — |
| Debian 11 | u-boot | 2021.01+dfsg-5+deb11u1 | DLA-4150-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | u-boot | 2025.10-0ubuntu0.24.04.2 | USN-8056-1 |
| Ubuntu 24.04 LTS | u-boot-nezha | No fix yet | — |
| Ubuntu 22.04 LTS | u-boot | 2022.01+dfsg-2ubuntu2.7 | USN-8056-1 |
| Ubuntu 22.04 LTS | u-boot-nezha | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| 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 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | u-boot +1 | 2021.10-150600.11.3.1 | SUSE-SU-2025:0989-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 6.0 | u-boot-rpiarm64 | 2023.04-2.1 | SUSE-SU-2025:20219-1 |
| SLE Micro 5.5 | u-boot-rpiarm64 | 2021.10-150400.4.14.1 | SUSE-SU-2025:0763-1 |
| SLE Micro 5.4 | u-boot-rpiarm64 | 2021.10-150400.4.14.1 | SUSE-SU-2025:0763-1 |
| SLE Micro 5.3 | u-boot-rpiarm64 | 2021.10-150400.4.14.1 | SUSE-SU-2025:0763-1 |
| SLE Micro 5.2 | u-boot-rpiarm64 | 2021.01-150300.7.24.1 | SUSE-SU-2025:0817-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.6 | u-boot +41 | 2021.10-150600.11.3.1 | SUSE-SU-2025:0989-1 |
| openSUSE Leap 15.6 | u-boot-xilinxzynqmpgeneric | 2020.01-150200.10.18.1 | SUSE-SU-2025:0755-1 |
Advisories 10
- ICSA-26-134-16 Siemens Ruggedcom Rox CISA ICS & IT advisories · May 14, 2026
- NCSC-2026-0147 Kwetsbaarheden verholpen in Siemens-producten NCSC-NL (Netherlands) · May 13, 2026
- SSA-577017 SSA-577017: Multiple Vulnerabilities in Ruggedcom Rox Before 2.17.1 Siemens ProductCERT · May 12, 2026
- USN-8056-1 u-boot vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- SUSE-SU-2025:20219-1 Security update for u-boot SUSE / openSUSE Security Updates · Mar 23, 2026
- DLA-4150-1 u-boot - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2025:0763-1 Security update for u-boot SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0755-1 Security update for u-boot SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0817-1 Security update for u-boot SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0989-1 Security update for u-boot SUSE / openSUSE Security Updates · Feb 4, 2026