{"id":"USN-8819-3","summary":"linux-aws-hwe, linux-azure, linux-azure-4.15 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  - Network file system (NFS) server daemon;\n  - IPv6 networking;\n  - Netfilter;\n(CVE-2025-38724, CVE-2026-53131, CVE-2026-53221)\n","modified":"2026-09-29T17:42:31.810782401Z","published":"2026-09-29T09:19:24Z","related":["UBUNTU-CVE-2025-38724","UBUNTU-CVE-2026-53131","UBUNTU-CVE-2026-53221"],"upstream":["CVE-2025-38724","CVE-2026-53131","CVE-2026-53221","UBUNTU-CVE-2025-38724","UBUNTU-CVE-2026-53131","UBUNTU-CVE-2026-53221"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8819-3"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-38724"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53131"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53221"}],"affected":[{"package":{"name":"linux-azure","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/linux-azure?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1207.222~14.04.1"}]}],"versions":["4.15.0-1023.24~14.04.1","4.15.0-1030.31~14.04.1","4.15.0-1031.32~14.04.1","4.15.0-1032.33~14.04.2","4.15.0-1035.36~14.04.2","4.15.0-1036.38~14.04.2","4.15.0-1037.39~14.04.2","4.15.0-1039.41~14.04.2","4.15.0-1040.44~14.04.1","4.15.0-1041.45~14.04.1","4.15.0-1042.46~14.04.1","4.15.0-1045.49~14.04.1","4.15.0-1046.50~14.04.1","4.15.0-1047.51~14.04.1","4.15.0-1049.54~14.04.1","4.15.0-1050.55~14.04.1","4.15.0-1051.56~14.04.1","4.15.0-1052.57~14.04.1","4.15.0-1055.60~14.04.1","4.15.0-1056.61~14.04.1","4.15.0-1057.62~14.04.1","4.15.0-1059.64~14.04.1","4.15.0-1060.65~14.04.1","4.15.0-1061.66~14.04.1","4.15.0-1063.68~14.04.1","4.15.0-1064.69~14.04.1","4.15.0-1066.71~14.04.1","4.15.0-1067.72~14.04.1","4.15.0-1069.74~14.04.1","4.15.0-1071.76~14.04.1","4.15.0-1074.79~14.04.1","4.15.0-1077.82~14.04.1","4.15.0-1082.92~14.04.1","4.15.0-1083.93~14.04.1","4.15.0-1089.99~14.04.1","4.15.0-1091.101~14.04.1","4.15.0-1092.102~14.04.1","4.15.0-1093.103~14.04.1","4.15.0-1095.105~14.04.1","4.15.0-1096.106~14.04.1","4.15.0-1098.109~14.04.1","4.15.0-1100.111~14.04.1","4.15.0-1102.113~14.04.1","4.15.0-1103.114~14.04.1","4.15.0-1106.118~14.04.1","4.15.0-1108.120~14.04.1","4.15.0-1109.121~14.04.1","4.15.0-1110.122~14.04.1","4.15.0-1111.123~14.04.1","4.15.0-1112.124~14.04.1","4.15.0-1113.126~14.04.1","4.15.0-1114.127~14.04.1","4.15.0-1115.128~14.04.1","4.15.0-1118.131~14.04.1","4.15.0-1121.134~14.04.1","4.15.0-1122.135~14.04.1","4.15.0-1123.136~14.04.1","4.15.0-1124.137~14.04.1","4.15.0-1125.138~14.04.1","4.15.0-1126.139~14.04.1","4.15.0-1127.140~14.04.1","4.15.0-1129.142~14.04.1","4.15.0-1130.143~14.04.1","4.15.0-1131.144~14.04.1","4.15.0-1133.146~14.04.1","4.15.0-1134.147~14.04.1","4.15.0-1136.149~14.04.1","4.15.0-1137.150~14.04.1","4.15.0-1138.151~14.04.1","4.15.0-1139.152~14.04.1","4.15.0-1142.156~14.04.1","4.15.0-1145.160~14.04.1","4.15.0-1146.161~14.04.1","4.15.0-1149.164~14.04.1","4.15.0-1150.165~14.04.1","4.15.0-1151.166~14.04.1","4.15.0-1153.168~14.04.1","4.15.0-1157.172~14.04.2","4.15.0-1158.173~14.04.1","4.15.0-1159.174~14.04.1","4.15.0-1162.177~14.04.1","4.15.0-1163.178~14.04.1","4.15.0-1164.179~14.04.1","4.15.0-1165.180~14.04.1","4.15.0-1166.181~14.04.1","4.15.0-1167.182~14.04.1","4.15.0-1168.183~14.04.1","4.15.0-1169.184~14.04.1","4.15.0-1170.185~14.04.1","4.15.0-1171.186~14.04.1","4.15.0-1172.187~14.04.1","4.15.0-1173.188~14.04.1","4.15.0-1174.189~14.04.1","4.15.0-1175.190~14.04.1","4.15.0-1176.191~14.04.1","4.15.0-1177.192~14.04.1","4.15.0-1178.193~14.04.1","4.15.0-1179.194~14.04.1","4.15.0-1180.195~14.04.1","4.15.0-1181.196~14.04.1","4.15.0-1182.197~14.04.1","4.15.0-1183.198~14.04.1","4.15.0-1184.199~14.04.1","4.15.0-1185.200~14.04.1","4.15.0-1186.201~14.04.1","4.15.0-1187.202~14.04.1","4.15.0-1188.203~14.04.1","4.15.0-1189.204~14.04.1","4.15.0-1190.205~14.04.1","4.15.0-1191.206~14.04.1","4.15.0-1192.207~14.04.1","4.15.0-1193.208~14.04.1","4.15.0-1194.209~14.04.1","4.15.0-1195.210~14.04.1","4.15.0-1196.211~14.04.1","4.15.0-1197.212~14.04.1","4.15.0-1199.214~14.04.1","4.15.0-1200.215~14.04.1","4.15.0-1201.216~14.04.1","4.15.0-1202.217~14.04.1","4.15.0-1205.220~14.04.1","4.15.0-1206.221~14.04.1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro with Legacy support add-on: 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with Ubuntu Pro with Legacy support add-on: 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