{"id":"USN-8658-4","summary":"linux-azure-fde-5.15 vulnerabilities","details":"Several 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  - Open vSwitch;\n  - SCTP protocol;\n(CVE-2026-53224, CVE-2026-53246, CVE-2026-64531)\n","modified":"2026-08-31T17:26:21.901250681Z","published":"2026-08-27T21:32:51Z","related":["UBUNTU-CVE-2026-53224","UBUNTU-CVE-2026-53246","UBUNTU-CVE-2026-64531"],"upstream":["CVE-2026-53224","CVE-2026-53246","CVE-2026-64531","UBUNTU-CVE-2026-53224","UBUNTU-CVE-2026-53246","UBUNTU-CVE-2026-64531"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8658-4"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53224"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53246"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-64531"}],"affected":[{"package":{"name":"linux-azure-fde-5.15","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/linux-azure-fde-5.15?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1119.128~20.04.1"}]}],"versions":["5.15.0-1019.24~20.04.1.1","5.15.0-1020.25~20.04.1.1","5.15.0-1021.26~20.04.1.1","5.15.0-1029.36~20.04.1.1","5.15.0-1030.37~20.04.1.1","5.15.0-1031.38~20.04.1.1","5.15.0-1033.40~20.04.1.1","5.15.0-1034.41~20.04.1.2","5.15.0-1035.42~20.04.1.1","5.15.0-1036.43~20.04.1.1","5.15.0-1037.44~20.04.1.1","5.15.0-1038.45~20.04.1.1","5.15.0-1039.46~20.04.1.1","5.15.0-1040.47~20.04.1.1","5.15.0-1041.48~20.04.1.1","5.15.0-1042.49~20.04.1.1","5.15.0-1043.50~20.04.1.1","5.15.0-1046.53~20.04.1.1","5.15.0-1047.54~20.04.1.1","5.15.0-1049.56~20.04.1.1","5.15.0-1050.57~20.04.1.1","5.15.0-1051.59~20.04.1.1","5.15.0-1052.60~20.04.1.1","5.15.0-1053.61~20.04.1.1","5.15.0-1054.62~20.04.1.1","5.15.0-1056.64~20.04.1.1","5.15.0-1057.65~20.04.1.1","5.15.0-1058.66~20.04.2.1","5.15.0-1059.67~20.04.1.1","5.15.0-1060.69~20.04.1.1","5.15.0-1061.70~20.04.1.1","5.15.0-1063.72~20.04.1.1","5.15.0-1064.73~20.04.1.1","5.15.0-1065.74~20.04.1.1","5.15.0-1067.76~20.04.1.1","5.15.0-1068.77~20.04.1.1","5.15.0-1070.79~20.04.1.1","5.15.0-1071.80~20.04.1.1","5.15.0-1072.81~20.04.1.1","5.15.0-1073.82~20.04.1.1","5.15.0-1074.83~20.04.1.1","5.15.0-1076.85~20.04.1.1","5.15.0-1078.87~20.04.1.1","5.15.0-1081.90~20.04.1.1","5.15.0-1082.91~20.04.1.1","5.15.0-1086.95~20.04.1.1","5.15.0-1087.96~20.04.1.1","5.15.0-1088.97~20.04.1.1","5.15.0-1089.98~20.04.1.1","5.15.0-1091.100~20.04.1.1","5.15.0-1094.103~20.04.1.1","5.15.0-1096.105~20.04.1.1","5.15.0-1097.106~20.04.1.1","5.15.0-1098.107~20.04.1.1","5.15.0-1102.111~20.04.1.1","5.15.0-1103.112~20.04.1.1","5.15.0-1111.120~20.04.1.1","5.15.0-1114.123~20.04.1","5.15.0-1116.125~20.04.1","5.15.0-1117.126~20.04.2","5.15.0-1118.127~20.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"linux-azure-fde-5.15-cloud-tools-5.15.0-1119","binary_version":"5.15.0-1119.128~20.04.1"},{"binary_name":"linux-azure-fde-5.15-headers-5.15.0-1119","binary_version":"5.15.0-1119.128~20.04.1"},{"binary_name":"linux-azure-fde-5.15-tools-5.15.0-1119","binary_version":"5.15.0-1119.128~20.04.1"},{"binary_name":"linux-buildinfo-5.15.0-1119-azure-fde","binary_version":"5.15.0-1119.128~20.04.1"},{"binary_name":"linux-cloud-tools-5.15.0-1119-azure-fde","binary_version":"5.15.0-1119.128~20.04.1"},{"binary_name":"linux-headers-5.15.0-1119-azure-fde","binary_version":"5.15.0-1119.128~20.04.1"},{"binary_name":"linux-image-unsigned-5.15.0-1119-azure-fde","binary_version":"5.15.0-1119.128~20.04.1"},{"binary_version":"5.15.0-1119.128~20.04.1","binary_name":"linux-modules-5.15.0-1119-azure-fde"},{"binary_name":"linux-modules-extra-5.15.0-1119-azure-fde","binary_version":"5.15.0-1119.128~20.04.1"},{"binary_name":"linux-modules-involflt-5.15.0-1119-azure-fde","binary_version":"5.15.0-1119.128~20.04.1"},{"binary_name":"linux-tools-5.15.0-1119-azure-fde","binary_version":"5.15.0-1119.128~20.04.1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},{"score":"high","type":"Ubuntu"}],"id":"CVE-2026-53224"},{"id":"CVE-2026-53246","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N"},{"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"}]},{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"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-2026-64531"}],"ecosystem":"Ubuntu:Pro:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8658-4.json"}}],"schema_version":"1.9.0"}