{"id":"UBUNTU-CVE-2025-70293","details":"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.","modified":"2026-10-17T12:52:31.918486197Z","published":"2026-08-26T20:16:00Z","related":["USN-8884-1"],"upstream":["CVE-2025-70293"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-70293"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-70293"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8884-1"}],"affected":[{"package":{"name":"u-boot","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/u-boot?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"}]}],"versions":["2016.03+dfsg1-6ubuntu2","2018.07~rc3+dfsg1-0ubuntu1~18.04.1","2018.07~rc3+dfsg1-0ubuntu2~18.04.1","2018.07~rc3+dfsg1-0ubuntu3~18.04.1","2019.07+dfsg-1ubuntu4~18.04.1","2020.10+dfsg-1ubuntu0~18.04.2","2020.10+dfsg-1ubuntu0~18.04.3"],"ecosystem_specific":{"binaries":[{"binary_name":"u-boot","binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"},{"binary_name":"u-boot-amlogic","binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"},{"binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1","binary_name":"u-boot-exynos"},{"binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1","binary_name":"u-boot-imx"},{"binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1","binary_name":"u-boot-mvebu"},{"binary_name":"u-boot-omap","binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"},{"binary_name":"u-boot-qcom","binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"},{"binary_name":"u-boot-qemu","binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"},{"binary_name":"u-boot-rockchip","binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"},{"binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1","binary_name":"u-boot-rpi"},{"binary_name":"u-boot-sunxi","binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"},{"binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1","binary_name":"u-boot-tegra"},{"binary_name":"u-boot-tools","binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-70293.json"}},{"package":{"name":"u-boot","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/u-boot?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2021.01+dfsg-3ubuntu0~20.04.6+esm1"}]}],"versions":["2019.07+dfsg-1ubuntu3","2019.07+dfsg-1ubuntu5","2019.07+dfsg-1ubuntu6","2020.10+dfsg-1ubuntu0~20.04.2","2021.01+dfsg-3ubuntu0~20.04.1","2021.01+dfsg-3ubuntu0~20.04.3","2021.01+dfsg-3ubuntu0~20.04.4","2021.01+dfsg-3ubuntu0~20.04.5","2021.01+dfsg-3ubuntu0~20.04.6"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): 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