{"id":"USN-8280-3","summary":"linux-iot vulnerabilities","details":"It was discovered that the Linux kernel algif_aead module did not properly\nhandle in-place cryptographic operations. This flaw is known as Copy Fail.\nA local attacker could use this to escalate privileges, or possibly escape\na container. (CVE-2026-31431)\n\nSeveral security issues were discovered in the Linux kernel.\nAn attacker could possibly use these to compromise the system.\nThis update corrects flaws in the following subsystems:\n  - Cryptographic API;\n  - Packet sockets;\n  - TLS protocol;\n(CVE-2026-31504, CVE-2026-31533, CVE-2026-43033, CVE-2026-43077,\nCVE-2026-43078)\n","modified":"2026-06-03T14:03:52.883862981Z","published":"2026-05-26T19:55:29Z","related":["UBUNTU-CVE-2026-31431","UBUNTU-CVE-2026-31504","UBUNTU-CVE-2026-31533","UBUNTU-CVE-2026-43033","UBUNTU-CVE-2026-43077","UBUNTU-CVE-2026-43078"],"upstream":["CVE-2026-31431","CVE-2026-31504","CVE-2026-31533","CVE-2026-43033","CVE-2026-43077","CVE-2026-43078","UBUNTU-CVE-2026-31431","UBUNTU-CVE-2026-31504","UBUNTU-CVE-2026-31533","UBUNTU-CVE-2026-43033","UBUNTU-CVE-2026-43077","UBUNTU-CVE-2026-43078"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8280-3"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-31431"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-31504"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-31533"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43033"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43077"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43078"}],"affected":[{"package":{"name":"linux-iot","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/linux-iot?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1063.66"}]}],"versions":["5.4.0-1001.3","5.4.0-1004.6","5.4.0-1005.7","5.4.0-1006.8","5.4.0-1009.11","5.4.0-1010.12","5.4.0-1011.13","5.4.0-1012.14","5.4.0-1013.15","5.4.0-1014.16","5.4.0-1017.18","5.4.0-1018.19","5.4.0-1019.20","5.4.0-1021.22","5.4.0-1022.23","5.4.0-1023.24","5.4.0-1024.25","5.4.0-1025.26","5.4.0-1026.27","5.4.0-1028.29","5.4.0-1029.30","5.4.0-1030.31","5.4.0-1031.32","5.4.0-1032.33","5.4.0-1033.34","5.4.0-1034.35","5.4.0-1035.36","5.4.0-1036.37","5.4.0-1037.38","5.4.0-1038.39","5.4.0-1039.40","5.4.0-1040.41","5.4.0-1041.42","5.4.0-1042.43","5.4.0-1043.44","5.4.0-1044.45","5.4.0-1045.46","5.4.0-1048.51","5.4.0-1049.52","5.4.0-1051.54","5.4.0-1052.55","5.4.0-1053.56","5.4.0-1054.57","5.4.0-1055.58","5.4.0-1056.59","5.4.0-1057.60","5.4.0-1058.61","5.4.0-1060.63","5.4.0-1061.64","5.4.0-1062.65"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"linux-buildinfo-5.4.0-1063-iot","binary_version":"5.4.0-1063.66"},{"binary_name":"linux-headers-5.4.0-1063-iot","binary_version":"5.4.0-1063.66"},{"binary_name":"linux-image-unsigned-5.4.0-1063-iot","binary_version":"5.4.0-1063.66"},{"binary_name":"linux-iot-headers-5.4.0-1063","binary_version":"5.4.0-1063.66"},{"binary_name":"linux-iot-tools-5.4.0-1063","binary_version":"5.4.0-1063.66"},{"binary_name":"linux-modules-5.4.0-1063-iot","binary_version":"5.4.0-1063.66"},{"binary_name":"linux-tools-5.4.0-1063-iot","binary_version":"5.4.0-1063.66"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:20.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}],"id":"CVE-2026-31431"},{"id":"CVE-2026-31504","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-31533","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-43033","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-43077","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-43078","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8280-3.json"}}],"schema_version":"1.7.5"}