{"id":"USN-8930-2","summary":"u-boot vulnerabilities","details":"USN-8930-1 fixed some vulnerabilities in U-Boot. This update provides the\ncorresponding fix for U-Boot on Ubuntu 26.10.\n\nOriginal advisory details:\n\n Shahriyar Jalayeri and Mehrun P. Hunter discovered that U-Boot\nincorrectly handled certain NFS READ and NFS READLINK responses. An\nattacker could possibly use this issue to trigger a buffer overflow,\nresulting in a denial of service or arbitrary code execution.\n(CVE-2026-74220, CVE-2026-74221)\n\n Shahriyar Jalayeri and Mehrun P. Hunter discovered that U-Boot\nincorrectly handled certain HTTP data storage failures in its lwIP\nimplementation. An attacker could possibly use this issue to trigger a\nuse-after-free, resulting in a denial of service. (CVE-2026-74222)\n\n Shahriyar Jalayeri and Mehrun P. Hunter discovered that U-Boot did not\nproperly validate certain DHCPv6 option lengths during network boot. An\nattacker could possibly use this issue to trigger out-of-bounds memory\naccess, resulting in a denial of service. (CVE-2026-74225)","modified":"2026-10-21T23:13:03.440289031Z","published":"2026-10-21T15:57:11Z","related":["UBUNTU-CVE-2026-74220","UBUNTU-CVE-2026-74221","UBUNTU-CVE-2026-74222","UBUNTU-CVE-2026-74225"],"upstream":["CVE-2026-74220","CVE-2026-74221","CVE-2026-74222","CVE-2026-74225","UBUNTU-CVE-2026-74220","UBUNTU-CVE-2026-74221","UBUNTU-CVE-2026-74222","UBUNTU-CVE-2026-74225"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8930-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-74220"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-74221"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-74222"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-74225"}],"affected":[{"package":{"name":"u-boot","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/u-boot?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2025.10-0ubuntu6"}]}],"versions":["2025.10-0ubuntu2","2025.10-0ubuntu3","2025.10-0ubuntu4","2025.10-0ubuntu5"],"ecosystem_specific":{"binaries":[{"binary_version":"2025.10-0ubuntu6","binary_name":"u-boot-amlogic"},{"binary_name":"u-boot-amlogic-binaries","binary_version":"2025.10-0ubuntu6"},{"binary_name":"u-boot-asahi","binary_version":"2025.10-0ubuntu6"},{"binary_version":"2025.10-0ubuntu6","binary_name":"u-boot-exynos"},{"binary_version":"2025.10-0ubuntu6","binary_name":"u-boot-exynos-binaries"},{"binary_version":"2025.10-0ubuntu6","binary_name":"u-boot-imx"},{"binary_name":"u-boot-microchip","binary_version":"2025.10-0ubuntu6"},{"binary_name":"u-boot-mvebu","binary_version":"2025.10-0ubuntu6"},{"binary_version":"2025.10-0ubuntu6","binary_name":"u-boot-omap"},{"binary_name":"u-boot-qcom","binary_version":"2025.10-0ubuntu6"},{"binary_version":"2025.10-0ubuntu6","binary_name":"u-boot-qemu"},{"binary_name":"u-boot-rockchip","binary_version":"2025.10-0ubuntu6"},{"binary_name":"u-boot-rpi","binary_version":"2025.10-0ubuntu6"},{"binary_version":"2025.10-0ubuntu6","binary_name":"u-boot-sifive"},{"binary_name":"u-boot-sitara-binaries","binary_version":"2025.10-0ubuntu6"},{"binary_name":"u-boot-starfive","binary_version":"2025.10-0ubuntu6"},{"binary_version":"2025.10-0ubuntu6","binary_name":"u-boot-stm32"},{"binary_name":"u-boot-sunxi","binary_version":"2025.10-0ubuntu6"},{"binary_version":"2025.10-0ubuntu6","binary_name":"u-boot-tegra"},{"binary_name":"u-boot-tools","binary_version":"2025.10-0ubuntu6"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2026-74220","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","type":"CVSS_V3"},{"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"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-74221","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","type":"CVSS_V3"},{"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-2026-74222","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"}]},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-74225"}],"ecosystem":"Ubuntu:26.10"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8930-2.json"}}],"schema_version":"1.9.0"}