{"id":"USN-5808-1","summary":"linux-ibm-5.4 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":"2026-04-27T16:29:10.716517Z","published":"2023-01-17T18:00:04Z","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-5808-1"},{"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-ibm-5.4","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/linux-ibm-5.4@5.4.0-1042.47~18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1042.47~18.04.1"}]}],"versions":["5.4.0-1010.11~18.04.2","5.4.0-1012.13~18.04.1","5.4.0-1014.15~18.04.1","5.4.0-1015.16~18.04.1","5.4.0-1017.19~18.04.1","5.4.0-1018.20~18.04.1","5.4.0-1019.21~18.04.1","5.4.0-1020.22~18.04.1","5.4.0-1021.23~18.04.1","5.4.0-1023.25~18.04.1","5.4.0-1026.29~18.04.1","5.4.0-1028.32~18.04.1","5.4.0-1029.33~18.04.1","5.4.0-1031.35~18.04.1","5.4.0-1032.36~18.04.1","5.4.0-1033.37~18.04.1","5.4.0-1034.38~18.04.1","5.4.0-1036.41~18.04.1","5.4.0-1037.42~18.04.1","5.4.0-1040.45~18.04.2","5.4.0-1041.46~18.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"5.4.0-1042.47~18.04.1","binary_name":"linux-buildinfo-5.4.0-1042-ibm"},{"binary_version":"5.4.0-1042.47~18.04.1","binary_name":"linux-headers-5.4.0-1042-ibm"},{"binary_version":"5.4.0-1042.47~18.04.1","binary_name":"linux-ibm-5.4-cloud-tools-common"},{"binary_version":"5.4.0-1042.47~18.04.1","binary_name":"linux-ibm-5.4-headers-5.4.0-1042"},{"binary_version":"5.4.0-1042.47~18.04.1","binary_name":"linux-ibm-5.4-source-5.4.0"},{"binary_version":"5.4.0-1042.47~18.04.1","binary_name":"linux-ibm-5.4-tools-5.4.0-1042"},{"binary_version":"5.4.0-1042.47~18.04.1","binary_name":"linux-ibm-5.4-tools-common"},{"binary_version":"5.4.0-1042.47~18.04.1","binary_name":"linux-image-unsigned-5.4.0-1042-ibm"},{"binary_version":"5.4.0-1042.47~18.04.1","binary_name":"linux-modules-5.4.0-1042-ibm"},{"binary_version":"5.4.0-1042.47~18.04.1","binary_name":"linux-modules-extra-5.4.0-1042-ibm"},{"binary_version":"5.4.0-1042.47~18.04.1","binary_name":"linux-tools-5.4.0-1042-ibm"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2022-3643","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2022-42896","severity":[{"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":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2022-43945","severity":[{"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":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2022-45934","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":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5808-1.json"}}],"schema_version":"1.7.5"}