{"id":"USN-8714-2","summary":"linux-aws-5.4, linux-gcp, linux-gcp-5.4 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  - OCFS2 file system;\n  - SCTP protocol;\n(CVE-2026-53043, CVE-2026-53224, CVE-2026-53225, CVE-2026-53246,\nCVE-2026-53309)\n","modified":"2026-09-05T06:26:19.733199835Z","published":"2026-09-04T17:55:21Z","related":["UBUNTU-CVE-2026-53043","UBUNTU-CVE-2026-53224","UBUNTU-CVE-2026-53225","UBUNTU-CVE-2026-53246","UBUNTU-CVE-2026-53309"],"upstream":["CVE-2026-53043","CVE-2026-53224","CVE-2026-53225","CVE-2026-53246","CVE-2026-53309","UBUNTU-CVE-2026-53043","UBUNTU-CVE-2026-53224","UBUNTU-CVE-2026-53225","UBUNTU-CVE-2026-53246","UBUNTU-CVE-2026-53309"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8714-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53043"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53224"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53225"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53246"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53309"}],"affected":[{"package":{"name":"linux-aws-5.4","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/linux-aws-5.4?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1163.174~18.04.1"}]}],"versions":["5.4.0-1018.18~18.04.1","5.4.0-1020.20~18.04.2","5.4.0-1022.22~18.04.1","5.4.0-1024.24~18.04.1","5.4.0-1025.25~18.04.1","5.4.0-1028.29~18.04.1","5.4.0-1029.30~18.04.1","5.4.0-1030.31~18.04.1","5.4.0-1032.33~18.04.1","5.4.0-1034.35~18.04.1","5.4.0-1035.37~18.04.1","5.4.0-1037.39~18.04.1","5.4.0-1038.40~18.04.1","5.4.0-1039.41~18.04.1","5.4.0-1041.43~18.04.1","5.4.0-1043.45~18.04.1","5.4.0-1045.47~18.04.1","5.4.0-1047.49~18.04.1","5.4.0-1048.50~18.04.1","5.4.0-1049.51~18.04.1","5.4.0-1051.53~18.04.1","5.4.0-1054.57~18.04.1","5.4.0-1055.58~18.04.1","5.4.0-1056.59~18.04.1","5.4.0-1057.60~18.04.1","5.4.0-1058.61~18.04.3","5.4.0-1059.62~18.04.1","5.4.0-1060.63~18.04.1","5.4.0-1061.64~18.04.1","5.4.0-1063.66~18.04.1","5.4.0-1064.67~18.04.1","5.4.0-1065.68~18.04.1","5.4.0-1066.69~18.04.1","5.4.0-1068.72~18.04.1","5.4.0-1069.73~18.04.1","5.4.0-1071.76~18.04.1","5.4.0-1072.77~18.04.1","5.4.0-1075.80~18.04.1","5.4.0-1078.84~18.04.1","5.4.0-1080.87~18.04.1","5.4.0-1081.88~18.04.1","5.4.0-1083.90~18.04.1","5.4.0-1084.91~18.04.1","5.4.0-1085.92~18.04.1","5.4.0-1086.93~18.04.1","5.4.0-1088.96~18.04.1","5.4.0-1089.97~18.04.1","5.4.0-1090.98~18.04.1","5.4.0-1092.100~18.04.2","5.4.0-1093.102~18.04.2","5.4.0-1094.102~18.04.1","5.4.0-1096.104~18.04.1","5.4.0-1097.105~18.04.1","5.4.0-1099.107~18.04.1","5.4.0-1100.108~18.04.1","5.4.0-1101.109~18.04.1","5.4.0-1103.111~18.04.1","5.4.0-1104.112~18.04.1","5.4.0-1105.113~18.04.1","5.4.0-1106.114~18.04.1","5.4.0-1107.115~18.04.1","5.4.0-1108.116~18.04.1","5.4.0-1109.118~18.04.1","5.4.0-1110.119~18.04.1","5.4.0-1111.120~18.04.1","5.4.0-1112.121~18.04.2","5.4.0-1113.123~18.04.1","5.4.0-1114.124~18.04.1","5.4.0-1116.126~18.04.1","5.4.0-1117.127~18.04.1","5.4.0-1118.128~18.04.1","5.4.0-1119.129~18.04.1","5.4.0-1120.130~18.04.1","5.4.0-1121.131~18.04.1","5.4.0-1122.132~18.04.1","5.4.0-1123.133~18.04.1","5.4.0-1124.134~18.04.1","5.4.0-1125.135~18.04.1","5.4.0-1126.136~18.04.1","5.4.0-1127.137~18.04.2","5.4.0-1128.138~18.04.1","5.4.0-1129.139~18.04.1","5.4.0-1130.140~18.04.1","5.4.0-1131.141~18.04.1","5.4.0-1132.142~18.04.1","5.4.0-1133.143~18.04.1","5.4.0-1134.144~18.04.1","5.4.0-1135.145~18.04.1","5.4.0-1136.146~18.04.1","5.4.0-1137.147~18.04.1","5.4.0-1139.149~18.04.1","5.4.0-1142.152~18.04.1","5.4.0-1144.154~18.04.1","5.4.0-1145.155~18.04.1","5.4.0-1146.156~18.04.1","5.4.0-1147.157~18.04.1","5.4.0-1148.158~18.04.1","5.4.0-1149.159~18.04.1","5.4.0-1150.160~18.04.1","5.4.0-1151.161~18.04.1","5.4.0-1152.162~18.04.1","5.4.0-1153.163~18.04.1","5.4.0-1154.164~18.04.1","5.4.0-1156.166~18.04.1","5.4.0-1157.167~18.04.1","5.4.0-1158.168~18.04.1","5.4.0-1160.170~18.04.1","5.4.0-1161.172~18.04.1","5.4.0-1162.173~18.04.1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"linux-aws-5.4-cloud-tools-5.4.0-1163","binary_version":"5.4.0-1163.174~18.04.1"},{"binary_name":"linux-aws-5.4-headers-5.4.0-1163","binary_version":"5.4.0-1163.174~18.04.1"},{"binary_name":"linux-aws-5.4-tools-5.4.0-1163","binary_version":"5.4.0-1163.174~18.04.1"},{"binary_version":"5.4.0-1163.174~18.04.1","binary_name":"linux-buildinfo-5.4.0-1163-aws"},{"binary_name":"linux-cloud-tools-5.4.0-1163-aws","binary_version":"5.4.0-1163.174~18.04.1"},{"binary_version":"5.4.0-1163.174~18.04.1","binary_name":"linux-headers-5.4.0-1163-aws"},{"binary_version":"5.4.0-1163.174~18.04.1","binary_name":"linux-image-unsigned-5.4.0-1163-aws"},{"binary_version":"5.4.0-1163.174~18.04.1","binary_name":"linux-modules-5.4.0-1163-aws"},{"binary_name":"linux-modules-extra-5.4.0-1163-aws","binary_version":"5.4.0-1163.174~18.04.1"},{"binary_name":"linux-tools-5.4.0-1163-aws","binary_version":"5.4.0-1163.174~18.04.1"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"id":"CVE-2026-53043","severity":[{"score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"high"}]},{"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"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}],"id":"CVE-2026-53224"},{"id":"CVE-2026-53225","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/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"},{"type":"Ubuntu","score":"negligible"}]},{"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"},{"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":[{"score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"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-2026-53309"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8714-2.json"}},{"package":{"name":"linux-gcp-5.4","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/linux-gcp-5.4?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1166.175~18.04.1"}]}],"versions":["5.4.0-1019.19~18.04.2","5.4.0-1021.21~18.04.1","5.4.0-1022.22~18.04.1","5.4.0-1024.24~18.04.1","5.4.0-1025.25~18.04.1","5.4.0-1028.29~18.04.1","5.4.0-1029.31~18.04.1","5.4.0-1030.32~18.04.1","5.4.0-1032.34~18.04.1","5.4.0-1033.35~18.04.1","5.4.0-1034.37~18.04.1","5.4.0-1036.39~18.04.1","5.4.0-1037.40~18.04.1","5.4.0-1038.41~18.04.1","5.4.0-1040.43~18.04.1","5.4.0-1041.44~18.04.1","5.4.0-1042.45~18.04.1","5.4.0-1043.46~18.04.1","5.4.0-1044.47~18.04.2","5.4.0-1046.49~18.04.1","5.4.0-1049.53~18.04.1","5.4.0-1051.55~18.04.1","5.4.0-1052.56~18.04.1","5.4.0-1053.57~18.04.1","5.4.0-1055.59~18.04.1","5.4.0-1056.60~18.04.1","5.4.0-1057.61~18.04.1","5.4.0-1058.62~18.04.1","5.4.0-1059.63~18.04.1","5.4.0-1060.64~18.04.1","5.4.0-1062.66~18.04.1","5.4.0-1063.67~18.04.1","5.4.0-1064.68~18.04.1","5.4.0-1065.69~18.04.1","5.4.0-1067.71~18.04.1","5.4.0-1068.72~18.04.1","5.4.0-1069.73~18.04.1","5.4.0-1072.77~18.04.1","5.4.0-1073.78~18.04.1","5.4.0-1075.80~18.04.1","5.4.0-1078.84~18.04.1","5.4.0-1080.87~18.04.1","5.4.0-1083.91~18.04.1","5.4.0-1084.92~18.04.1","5.4.0-1086.94~18.04.1","5.4.0-1087.95~18.04.1","5.4.0-1089.97~18.04.1","5.4.0-1092.101~18.04.1","5.4.0-1093.102~18.04.1","5.4.0-1096.105~18.04.2","5.4.0-1097.106~18.04.1","5.4.0-1098.107~18.04.1","5.4.0-1100.109~18.04.1","5.4.0-1101.110~18.04.1","5.4.0-1102.111~18.04.2","5.4.0-1103.112~18.04.1","5.4.0-1104.113~18.04.1","5.4.0-1105.114~18.04.1","5.4.0-1106.115~18.04.1","5.4.0-1107.116~18.04.1","5.4.0-1108.117~18.04.1","5.4.0-1109.118~18.04.1","5.4.0-1110.119~18.04.1","5.4.0-1111.120~18.04.1","5.4.0-1112.121~18.04.1","5.4.0-1113.122~18.04.1","5.4.0-1115.124~18.04.1","5.4.0-1116.125~18.04.1","5.4.0-1117.126~18.04.1","5.4.0-1118.127~18.04.1","5.4.0-1120.129~18.04.1","5.4.0-1121.130~18.04.1","5.4.0-1122.131~18.04.1","5.4.0-1123.132~18.04.1","5.4.0-1124.133~18.04.1","5.4.0-1125.134~18.04.1","5.4.0-1126.135~18.04.1","5.4.0-1127.136~18.04.1","5.4.0-1128.137~18.04.1","5.4.0-1129.138~18.04.1","5.4.0-1130.139~18.04.1","5.4.0-1132.141~18.04.1","5.4.0-1133.142~18.04.1","5.4.0-1134.143~18.04.1","5.4.0-1135.144~18.04.1","5.4.0-1136.145~18.04.1","5.4.0-1137.146~18.04.1","5.4.0-1138.147~18.04.1","5.4.0-1139.148~18.04.1","5.4.0-1140.149~18.04.1","5.4.0-1141.150~18.04.1","5.4.0-1142.151~18.04.1","5.4.0-1143.152~18.04.1","5.4.0-1145.154~18.04.1","5.4.0-1147.156~18.04.1","5.4.0-1148.157~18.04.1","5.4.0-1149.158~18.04.1","5.4.0-1150.159~18.04.1","5.4.0-11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