This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page.
View CVE-2025-70293 →
UBUNTU-CVE-2025-70293
An issue was discovered in Denx U-Boot before 2026.04. An integer overflow vulnerability exists in function ext4fs_get_bgdtable, the size calculation...
Original description
The description as published by the source.
An issue was discovered in Denx U-Boot before 2026.04. An integer overflow vulnerability exists in function ext4fs_get_bgdtable, the size calculation can lead to under allocation and this underallocated buffer will be used in memcpy() which could lead to arbitrary code execution, a denial of service, or other unspecified impacts.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Ubuntu:Pro:18.04:LTS
u-boot
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"}]}]
Ubuntu:Pro:20.04:LTS
u-boot
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2021.01+dfsg-3ubuntu0~20.04.6+esm1"}]}]
Ubuntu:22.04:LTS
u-boot
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2022.01+dfsg-2ubuntu2.8"}]}]
Ubuntu:22.04:LTS
u-boot-nezha
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
u-boot
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2025.10-0ubuntu0.24.04.3"}]}]
Ubuntu:24.04:LTS
u-boot-nezha
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.10
u-boot
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2025.10-0ubuntu5"}]}]
Ubuntu:26.04:LTS
u-boot
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2025.10-0ubuntu2.1"}]}]
References
- advisory ubuntu.com
- report ubuntu.com
- report cve.org