{"id":"USN-6396-3","summary":"linux-azure vulnerabilities","details":"It was discovered that some AMD x86-64 processors with SMT enabled could\nspeculatively execute instructions using a return address from a sibling\nthread. A local attacker could possibly use this to expose sensitive\ninformation. (CVE-2022-27672)\n\nDaniel Moghimi discovered that some Intel(R) Processors did not properly\nclear microarchitectural state after speculative execution of various\ninstructions. A local unprivileged user could use this to obtain to\nsensitive information. (CVE-2022-40982)\n\nYang Lan discovered that the GFS2 file system implementation in the Linux\nkernel could attempt to dereference a null pointer in some situations. An\nattacker could use this to construct a malicious GFS2 image that, when\nmounted and operated on, could cause a denial of service (system crash).\n(CVE-2023-3212)\n\nIt was discovered that the NFC implementation in the Linux kernel contained\na use-after-free vulnerability when performing peer-to-peer communication\nin certain conditions. A privileged attacker could use this to cause a\ndenial of service (system crash) or possibly expose sensitive information\n(kernel memory). (CVE-2023-3863)\n\nIt was discovered that the bluetooth subsystem in the Linux kernel did not\nproperly handle L2CAP socket release, leading to a use-after-free\nvulnerability. A local attacker could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2023-40283)\n\nIt was discovered that some network classifier implementations in the Linux\nkernel contained use-after-free vulnerabilities. A local attacker could use\nthis to cause a denial of service (system crash) or possibly execute\narbitrary code. (CVE-2023-4128)\n","modified":"2026-04-27T17:02:15.976872344Z","published":"2023-10-17T14:06:42Z","related":["UBUNTU-CVE-2022-27672","UBUNTU-CVE-2022-40982","UBUNTU-CVE-2023-3212","UBUNTU-CVE-2023-3863","UBUNTU-CVE-2023-40283","UBUNTU-CVE-2023-4128"],"upstream":["CVE-2022-27672","CVE-2022-40982","CVE-2023-3212","CVE-2023-3863","CVE-2023-40283","CVE-2023-4128","UBUNTU-CVE-2022-27672","UBUNTU-CVE-2022-40982","UBUNTU-CVE-2023-3212","UBUNTU-CVE-2023-3863","UBUNTU-CVE-2023-40283","UBUNTU-CVE-2023-4128"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6396-3"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-27672"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-40982"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-3212"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-3863"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-4128"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-40283"}],"affected":[{"package":{"name":"linux-azure","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/linux-azure@4.15.0-1170.185~14.04.1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1170.185~14.04.1"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_name":"linux-azure-cloud-tools-4.15.0-1170","binary_version":"4.15.0-1170.185~14.04.1"},{"binary_name":"linux-azure-headers-4.15.0-1170","binary_version":"4.15.0-1170.185~14.04.1"},{"binary_name":"linux-azure-tools-4.15.0-1170","binary_version":"4.15.0-1170.185~14.04.1"},{"binary_name":"linux-buildinfo-4.15.0-1170-azure","binary_version":"4.15.0-1170.185~14.04.1"},{"binary_name":"linux-cloud-tools-4.15.0-1170-azure","binary_version":"4.15.0-1170.185~14.04.1"},{"binary_name":"linux-headers-4.15.0-1170-azure","binary_version":"4.15.0-1170.185~14.04.1"},{"binary_name":"linux-image-unsigned-4.15.0-1170-azure","binary_version":"4.15.0-1170.185~14.04.1"},{"binary_name":"linux-modules-4.15.0-1170-azure","binary_version":"4.15.0-1170.185~14.04.1"},{"binary_name":"linux-modules-extra-4.15.0-1170-azure","binary_version":"4.15.0-1170.185~14.04.1"},{"binary_name":"linux-tools-4.15.0-1170-azure","binary_version":"4.15.0-1170.185~14.04.1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2022-27672","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2022-40982","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-3212","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2023-3863","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-4128","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-2023-40283","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"}]}],"ecosystem":"Ubuntu:Pro:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6396-3.json"}}],"schema_version":"1.7.5"}