{"id":"USN-8391-1","summary":"linux-raspi, linux-raspi-5.4 vulnerabilities","details":"\nIt 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\nIt was discovered that the Linux kernel did not properly handle shared page\nfragments during socket buffer operations, collectively known as Dirty\nFrag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the\nRxRPC networking subsystem when processing paged fragments. A local\nattacker could use this to escalate privileges, or possibly escape a\ncontainer. (CVE-2026-43284, CVE-2026-43500)\n\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  - Network drivers;\n  - NVME drivers;\n  - IPv4 networking;\n  - Packet sockets;\n  - RDS protocol;\n  - TLS protocol;\n(CVE-2024-50304, CVE-2026-23112, CVE-2026-23209, CVE-2026-31504,\nCVE-2026-31533, CVE-2026-43033, CVE-2026-43077, CVE-2026-43078,\nCVE-2026-43494, CVE-2026-46028)\n\n","modified":"2026-06-05T03:14:12.212899743Z","published":"2026-06-04T21:23:31Z","related":["UBUNTU-CVE-2024-50304","UBUNTU-CVE-2026-23112","UBUNTU-CVE-2026-23209","UBUNTU-CVE-2026-31431","UBUNTU-CVE-2026-31504","UBUNTU-CVE-2026-31533","UBUNTU-CVE-2026-43033","UBUNTU-CVE-2026-43077","UBUNTU-CVE-2026-43078","UBUNTU-CVE-2026-43284","UBUNTU-CVE-2026-43494","UBUNTU-CVE-2026-43500","UBUNTU-CVE-2026-46028"],"upstream":["CVE-2024-50304","CVE-2026-23112","CVE-2026-23209","CVE-2026-31431","CVE-2026-31504","CVE-2026-31533","CVE-2026-43033","CVE-2026-43077","CVE-2026-43078","CVE-2026-43284","CVE-2026-43494","CVE-2026-43500","CVE-2026-46028","UBUNTU-CVE-2024-50304","UBUNTU-CVE-2026-23112","UBUNTU-CVE-2026-23209","UBUNTU-CVE-2026-31431","UBUNTU-CVE-2026-31504","UBUNTU-CVE-2026-31533","UBUNTU-CVE-2026-43033","UBUNTU-CVE-2026-43077","UBUNTU-CVE-2026-43078","UBUNTU-CVE-2026-43284","UBUNTU-CVE-2026-43494","UBUNTU-CVE-2026-43500","UBUNTU-CVE-2026-46028"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8391-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-50304"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-23112"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-23209"},{"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"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43284"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43494"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43500"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-46028"}],"affected":[{"package":{"name":"linux-raspi-5.4","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/linux-raspi-5.4?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1143.156~18.04.1"}]}],"versions":["5.4.0-1013.13~18.04.1","5.4.0-1015.15~18.04.1","5.4.0-1016.17~18.04.1","5.4.0-1018.20~18.04.1","5.4.0-1019.21~18.04.1","5.4.0-1021.24~18.04.1","5.4.0-1022.25~18.04.1","5.4.0-1023.26~18.04.1","5.4.0-1025.28~18.04.1","5.4.0-1026.29~18.04.1","5.4.0-1028.31~18.04.1","5.4.0-1029.32~18.04.1","5.4.0-1030.33~18.04.1","5.4.0-1032.35~18.04.1","5.4.0-1033.36~18.04.1","5.4.0-1034.37~18.04.1","5.4.0-1035.38~18.04.1","5.4.0-1036.39~18.04.1","5.4.0-1038.41~18.04.1","5.4.0-1041.45~18.04.1","5.4.0-1042.46~18.04.3","5.4.0-1043.47~18.04.1","5.4.0-1044.48~18.04.1","5.4.0-1045.49~18.04.1","5.4.0-1046.50~18.04.1","5.4.0-1047.52~18.04.1","5.4.0-1048.53~18.04.1","5.4.0-1050.56~18.04.1","5.4.0-1052.58~18.04.1","5.4.0-1053.60~18.04.1","5.4.0-1055.62~18.04.1","5.4.0-1056.63~18.04.1","5.4.0-1058.65~18.04.1","5.4.0-1059.66~18.04.1","5.4.0-1060.68~18.04.1","5.4.0-1062.70~18.04.1","5.4.0-1065.75~18.04.1","5.4.0-1066.76~18.04.1","5.4.0-1068.78~18.04.1","5.4.0-1069.79~18.04.1","5.4.0-1070.80~18.04.1","5.4.0-1071.81~18.04.1","5.4.0-1073.84~18.04.1","5.4.0-1074.85~18.04.1","5.4.0-1077.88~18.04.2","5.4.0-1078.89~18.04.1","5.4.0-1079.90~18.04.1","5.4.0-1080.91~18.04.1","5.4.0-1081.92~18.04.1","5.4.0-1082.93~18.04.1","5.4.0-1083.94~18.04.1","5.4.0-1084.95~18.04.1","5.4.0-1085.96~18.04.1","5.4.0-1086.97~18.04.1","5.4.0-1088.99~18.04.1","5.4.0-1089.100~18.04.1","5.4.0-1090.101~18.04.1","5.4.0-1091.102~18.04.1","5.4.0-1092.103~18.04.1","5.4.0-1093.104~18.04.1","5.4.0-1094.105~18.04.1","5.4.0-1095.106~18.04.1","5.4.0-1096.107~18.04.1","5.4.0-1097.109~18.04.2","5.4.0-1098.110~18.04.2","5.4.0-1100.112~18.04.1","5.4.0-1101.113~18.04.1","5.4.0-1102.114~18.04.1","5.4.0-1103.115~18.04.1","5.4.0-1104.116~18.04.1","5.4.0-1105.117~18.04.1","5.4.0-1106.118~18.04.1","5.4.0-1107.119~18.04.1","5.4.0-1108.120~18.04.1","5.4.0-1109.121~18.04.1","5.4.0-1110.122~18.04.1","5.4.0-1111.123~18.04.1","5.4.0-1112.124~18.04.1","5.4.0-1114.126~18.04.1","5.4.0-1115.127~18.04.1","5.4.0-1116.128~18.04.1","5.4.0-1117.129~18.04.1","5.4.0-1118.130~18.04.1","5.4.0-1119.131~18.04.1","5.4.0-1120.132~18.04.1","5.4.0-1121.133~18.04.1","5.4.0-1122.134~18.04.1","5.4.0-1129.142~18.04.1","5.4.0-1130.143~18.04.1","5.4.0-1131.144~18.04.1","5.4.0-1132.145~18.04.1","5.4.0-1133.146~18.04.1","5.4.0-1134.147~18.04.1","5.4.0-1135.148~18.04.1","5.4.0-1136.149~18.04.1","5.4.0-1137.150~18.04.1","5.4.0-1139.152~18.04.1","5.4.0-1140.153~18.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"linux-buildinfo-5.4.0-1143-raspi","binary_version":"5.4.0-1143.156~18.04.1"},{"binary_name":"linux-headers-5.4.0-1143-raspi","binary_version":"5.4.0-1143.156~18.04.1"},{"binary_name":"linux-image-5.4.0-1143-raspi","binary_version":"5.4.0-1143.156~18.04.1"},{"binary_name":"linux-modules-5.4.0-1143-raspi","binary_version":"5.4.0-1143.156~18.04.1"},{"binary_name":"linux-raspi-5.4-headers-5.4.0-1143","binary_version":"5.4.0-1143.156~18.04.1"},{"binary_name":"linux-raspi-5.4-tools-5.4.0-1143","binary_version":"5.4.0-1143.156~18.04.1"},{"binary_name":"linux-tools-5.4.0-1143-raspi","binary_version":"5.4.0-1143.156~18.04.1"}],"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-8391-1.json","cves_map":{"cves":[{"id":"CVE-2024-50304","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-23112","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2026-23209","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-31431","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2026-31504","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-31533","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-43033","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-43077","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-43078","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-43284","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2026-43494","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-43500","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2026-46028","severity":[{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:18.04:LTS"}}},{"package":{"name":"linux-raspi","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/linux-raspi?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1143.156"}]}],"versions":["5.4.0-1007.7","5.4.0-1008.8","5.4.0-1011.11","5.4.0-1012.12","5.4.0-1013.13","5.4.0-1015.15","5.4.0-1016.17","5.4.0-1018.20","5.4.0-1019.21","5.4.0-1021.24","5.4.0-1022.25","5.4.0-1023.26","5.4.0-1025.28","5.4.0-1026.29","5.4.0-1028.31","5.4.0-1029.32","5.4.0-1030.33","5.4.0-1032.35","5.4.0-1033.36","5.4.0-1034.37","5.4.0-1035.38","5.4.0-1036.39","5.4.0-1038.41","5.4.0-1041.45","5.4.0-1042.46","5.4.0-1043.47","5.4.0-1044.48","5.4.0-1045.49","5.4.0-1046.50","5.4.0-1047.52","5.4.0-1048.53","5.4.0-1050.56","5.4.0-1052.58","5.4.0-1053.60","5.4.0-1055.62","5.4.0-1056.63","5.4.0-1058.65","5.4.0-1059.67","5.4.0-1060.68","5.4.0-1062.70","5.4.0-1065.75","5.4.0-1066.76","5.4.0-1068.78","5.4.0-1069.79","5.4.0-1070.80","5.4.0-1071.81","5.4.0-1073.84","5.4.0-1074.85","5.4.0-1077.88","5.4.0-1078.89","5.4.0-1079.90","5.4.0-1080.91","5.4.0-1081.92","5.4.0-1082.93","5.4.0-1083.94","5.4.0-1084.95","5.4.0-1085.96","5.4.0-1086.97","5.4.0-1088.99","5.4.0-1089.100","5.4.0-1090.101","5.4.0-1091.102","5.4.0-1092.103","5.4.0-1093.104","5.4.0-1094.105","5.4.0-1095.106","5.4.0-1096.107","5.4.0-1097.109","5.4.0-1098.110","5.4.0-1100.112","5.4.0-1101.113","5.4.0-1102.114","5.4.0-1103.115","5.4.0-1104.116","5.4.0-1105.117","5.4.0-1106.118","5.4.0-1107.119","5.4.0-1108.120","5.4.0-1109.121","5.4.0-1110.122","5.4.0-1111.123","5.4.0-1112.124","5.4.0-1113.125","5.4.0-1114.126","5.4.0-1115.127","5.4.0-1116.128","5.4.0-1117.129","5.4.0-1118.130","5.4.0-1119.131","5.4.0-1120.132","5.4.0-1121.133","5.4.0-1122.134","5.4.0-1129.142","5.4.0-1130.143","5.4.0-1131.144","5.4.0-1132.145","5.4.0-1133.146","5.4.0-1134.147","5.4.0-1135.148","5.4.0-1136.149","5.4.0-1137.150","5.4.0-1139.152","5.4.0-1140.153"],"ecosystem_specific":{"binaries":[{"binary_name":"linux-buildinfo-5.4.0-1143-raspi","binary_version":"5.4.0-1143.156"},{"binary_name":"linux-headers-5.4.0-1143-raspi","binary_version":"5.4.0-1143.156"},{"binary_name":"linux-image-5.4.0-1143-raspi","binary_version":"5.4.0-1143.156"},{"binary_name":"linux-modules-5.4.0-1143-raspi","binary_version":"5.4.0-1143.156"},{"binary_name":"linux-raspi-headers-5.4.0-1143","binary_version":"5.4.0-1143.156"},{"binary_name":"linux-raspi-tools-5.4.0-1143","binary_version":"5.4.0-1143.156"},{"binary_name":"linux-tools-5.4.0-1143-raspi","binary_version":"5.4.0-1143.156"}],"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-8391-1.json","cves_map":{"cves":[{"id":"CVE-2024-50304","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-23112","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2026-23209","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-31431","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2026-31504","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-31533","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-43033","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-43077","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-43078","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-43284","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2026-43494","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-43500","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2026-46028","severity":[{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:20.04:LTS"}}}],"schema_version":"1.7.5"}