{"id":"USN-8884-1","summary":"u-boot vulnerabilities","details":"Timo Preißl discovered that U-Boot incorrectly handled certain malformed\nZFS file system metadata. An attacker could possibly use this issue to\ntrigger an integer overflow and out-of-bounds memory access, resulting in\narbitrary code execution or a denial of service. (CVE-2025-70290)\n\nTimo Preißl discovered that U-Boot incorrectly calculated buffer sizes when\nprocessing certain ext4 file systems. An attacker could possibly use this\nissue to trigger an integer overflow and out-of-bounds memory access,\nresulting in arbitrary code execution or a denial of service. This issue\nonly affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu\n24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2025-70293)\n\nMateusz Furdyna discovered that U-Boot incorrectly handled certain\nfragmented IP traffic when IP defragmentation was enabled. An attacker\ncould possibly use this issue to corrupt memory by sending crafted IP\nfragments, resulting in arbitrary code execution. (CVE-2026-15390)\n\nShahriyar Jalayeri and Mehrun P. Hunter discovered that U-Boot incorrectly\nhandled certain fragmented IP traffic during network boot when IP\ndefragmentation was enabled. An attacker could possibly use this issue to\ntrigger an out-of-bounds write, resulting in a denial of service.\n(CVE-2026-71971)","modified":"2026-10-07T04:41:44.038645118Z","published":"2026-10-06T16:09:02Z","related":["UBUNTU-CVE-2025-70290","UBUNTU-CVE-2025-70293","UBUNTU-CVE-2026-15390","UBUNTU-CVE-2026-71971"],"upstream":["CVE-2025-70290","CVE-2025-70293","CVE-2026-15390","CVE-2026-71971","UBUNTU-CVE-2025-70290","UBUNTU-CVE-2025-70293","UBUNTU-CVE-2026-15390","UBUNTU-CVE-2026-71971"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8884-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-70290"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-70293"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-15390"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-71971"}],"affected":[{"package":{"name":"u-boot","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/u-boot?arch=source&distro=esm-infra-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2016.01+dfsg1-2ubuntu5+esm1"}]}],"versions":["2015.04+dfsg1-2ubuntu1","2015.10+dfsg1-2","2015.10+dfsg1-3","2015.10+dfsg1-4","2016.01+dfsg1-1","2016.01+dfsg1-1ubuntu1","2016.01+dfsg1-2ubuntu1","2016.01+dfsg1-2ubuntu2","2016.01+dfsg1-2ubuntu3","2016.01+dfsg1-2ubuntu5"],"ecosystem_specific":{"binaries":[{"binary_version":"2016.01+dfsg1-2ubuntu5+esm1","binary_name":"u-boot"},{"binary_name":"u-boot-exynos","binary_version":"2016.01+dfsg1-2ubuntu5+esm1"},{"binary_name":"u-boot-imx","binary_version":"2016.01+dfsg1-2ubuntu5+esm1"},{"binary_version":"2016.01+dfsg1-2ubuntu5+esm1","binary_name":"u-boot-omap"},{"binary_version":"2016.01+dfsg1-2ubuntu5+esm1","binary_name":"u-boot-rockchip"},{"binary_name":"u-boot-rpi","binary_version":"2016.01+dfsg1-2ubuntu5+esm1"},{"binary_name":"u-boot-sunxi","binary_version":"2016.01+dfsg1-2ubuntu5+esm1"},{"binary_name":"u-boot-tegra","binary_version":"2016.01+dfsg1-2ubuntu5+esm1"},{"binary_version":"2016.01+dfsg1-2ubuntu5+esm1","binary_name":"u-boot-tools"}],"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2025-70290"},{"id":"CVE-2026-15390","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"},{"type":"Ubuntu","score":"medium"}]},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"},{"score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-71971"}],"ecosystem":"Ubuntu:Pro:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8884-1.json"}},{"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_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1","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_name":"u-boot-exynos"},{"binary_name":"u-boot-imx","binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"},{"binary_name":"u-boot-mvebu","binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"},{"binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1","binary_name":"u-boot-omap"},{"binary_name":"u-boot-qcom","binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"},{"binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1","binary_name":"u-boot-qemu"},{"binary_name":"u-boot-rockchip","binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"},{"binary_name":"u-boot-rpi","binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"},{"binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1","binary_name":"u-boot-sunxi"},{"binary_name":"u-boot-tegra","binary_version":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"},{"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/usn/USN-8884-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2025-70290"},{"id":"CVE-2025-70293","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}]},{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-15390"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-71971"}]}}},{"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 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