{"id":"USN-5863-1","summary":"linux-azure vulnerabilities","details":"It was discovered that the NFSD implementation in the Linux kernel did not\nproperly handle some RPC messages, leading to a buffer overflow. A remote\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2022-43945)\n\nTamás Koczka discovered that the Bluetooth L2CAP handshake implementation\nin the Linux kernel contained multiple use-after-free vulnerabilities. A\nphysically proximate attacker could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2022-42896)\n\nIt was discovered that the Xen netback driver in the Linux kernel did not\nproperly handle packets structured in certain ways. An attacker in a guest\nVM could possibly use this to cause a denial of service (host NIC\navailability). (CVE-2022-3643)\n\nIt was discovered that an integer overflow vulnerability existed in the\nBluetooth subsystem in the Linux kernel. A physically proximate attacker\ncould use this to cause a denial of service (system crash).\n(CVE-2022-45934)\n\n","modified":"2026-02-10T04:42:57Z","published":"2023-02-09T23:17:58Z","related":["UBUNTU-CVE-2022-3643","UBUNTU-CVE-2022-42896","UBUNTU-CVE-2022-43945","UBUNTU-CVE-2022-45934"],"upstream":["CVE-2022-3643","CVE-2022-42896","CVE-2022-43945","CVE-2022-45934","UBUNTU-CVE-2022-3643","UBUNTU-CVE-2022-42896","UBUNTU-CVE-2022-43945","UBUNTU-CVE-2022-45934"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5863-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-3643"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-42896"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-43945"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-45934"}],"affected":[{"package":{"name":"linux-azure","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/linux-azure@4.15.0-1159.174~16.04.1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1159.174~16.04.1"}]}],"versions":["4.11.0-1009.9","4.11.0-1011.11","4.11.0-1013.13","4.11.0-1014.14","4.11.0-1015.15","4.11.0-1016.16","4.13.0-1005.7","4.13.0-1006.8","4.13.0-1007.9","4.13.0-1009.12","4.13.0-1011.14","4.13.0-1012.15","4.13.0-1014.17","4.13.0-1016.19","4.13.0-1018.21","4.15.0-1013.13~16.04.2","4.15.0-1014.14~16.04.1","4.15.0-1018.18~16.04.1","4.15.0-1019.19~16.04.1","4.15.0-1021.21~16.04.1","4.15.0-1022.22~16.04.1","4.15.0-1023.24~16.04.1","4.15.0-1025.26~16.04.1","4.15.0-1028.29~16.04.1","4.15.0-1030.31~16.04.1","4.15.0-1031.32~16.04.1","4.15.0-1032.33~16.04.1","4.15.0-1035.36~16.04.1","4.15.0-1036.38~16.04.1","4.15.0-1037.39~16.04.1","4.15.0-1039.43","4.15.0-1040.44","4.15.0-1041.45","4.15.0-1042.46","4.15.0-1045.49","4.15.0-1046.50","4.15.0-1047.51","4.15.0-1049.54","4.15.0-1050.55","4.15.0-1051.56","4.15.0-1052.57","4.15.0-1055.60","4.15.0-1056.61","4.15.0-1057.62","4.15.0-1059.64","4.15.0-1060.65","4.15.0-1061.66","4.15.0-1063.68","4.15.0-1064.69","4.15.0-1066.71","4.15.0-1067.72","4.15.0-1069.74","4.15.0-1071.76","4.15.0-1075.80","4.15.0-1077.82","4.15.0-1082.92~16.04.1","4.15.0-1083.93~16.04.1","4.15.0-1089.99~16.04.1","4.15.0-1091.101~16.04.1","4.15.0-1092.102~16.04.1","4.15.0-1093.103~16.04.1","4.15.0-1095.105~16.04.1","4.15.0-1096.106~16.04.1","4.15.0-1098.109~16.04.1","4.15.0-1100.111~16.04.1","4.15.0-1102.113~16.04.1","4.15.0-1103.114~16.04.1","4.15.0-1106.118~16.04.1","4.15.0-1108.120~16.04.1","4.15.0-1109.121~16.04.1","4.15.0-1110.122~16.04.1","4.15.0-1111.123~16.04.1","4.15.0-1112.124~16.04.1","4.15.0-1113.126~16.04.1","4.15.0-1114.127~16.04.1","4.15.0-1115.128~16.04.1","4.15.0-1118.131~16.04.1","4.15.0-1121.134~16.04.1","4.15.0-1122.135~16.04.1","4.15.0-1123.136~16.04.1","4.15.0-1124.137~16.04.1","4.15.0-1125.138~16.04.1","4.15.0-1126.139~16.04.1","4.15.0-1127.140~16.04.1","4.15.0-1129.142~16.04.1","4.15.0-1130.143~16.04.1","4.15.0-1131.144~16.04.1","4.15.0-1133.146~16.04.1","4.15.0-1134.147~16.04.1","4.15.0-1136.149~16.04.1","4.15.0-1137.150~16.04.1","4.15.0-1138.151~16.04.1","4.15.0-1139.152~16.04.1","4.15.0-1142.156~16.04.1","4.15.0-1145.160~16.04.1","4.15.0-1146.161~16.04.1","4.15.0-1149.164~16.04.1","4.15.0-1150.165~16.04.1","4.15.0-1151.166~16.04.1","4.15.0-1153.168~16.04.1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"4.15.0-1159.174~16.04.1","binary_name":"linux-azure-cloud-tools-4.15.0-1159"},{"binary_version":"4.15.0-1159.174~16.04.1","binary_name":"linux-azure-headers-4.15.0-1159"},{"binary_version":"4.15.0-1159.174~16.04.1","binary_name":"linux-azure-tools-4.15.0-1159"},{"binary_version":"4.15.0-1159.174~16.04.1","binary_name":"linux-buildinfo-4.15.0-1159-azure"},{"binary_version":"4.15.0-1159.174~16.04.1","binary_name":"linux-cloud-tools-4.15.0-1159-azure"},{"binary_version":"4.15.0-1159.174~16.04.1","binary_name":"linux-headers-4.15.0-1159-azure"},{"binary_version":"4.15.0-1159.174~16.04.1","binary_name":"linux-image-unsigned-4.15.0-1159-azure"},{"binary_version":"4.15.0-1159.174~16.04.1","binary_name":"linux-modules-4.15.0-1159-azure"},{"binary_version":"4.15.0-1159.174~16.04.1","binary_name":"linux-modules-extra-4.15.0-1159-azure"},{"binary_version":"4.15.0-1159.174~16.04.1","binary_name":"linux-tools-4.15.0-1159-azure"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2022-3643"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}],"id":"CVE-2022-42896"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"high"}],"id":"CVE-2022-43945"},{"severity":[{"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":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2022-45934"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5863-1.json"}}],"schema_version":"1.7.3"}