{"id":"USN-5682-1","summary":"linux-aws-5.4 vulnerabilities","details":"It was discovered that the BPF verifier in the Linux kernel did not\nproperly handle internal data structures. A local attacker could use this\nto expose sensitive information (kernel memory). (CVE-2021-4159)\n\nIt was discovered that an out-of-bounds write vulnerability existed in the\nVideo for Linux 2 (V4L2) implementation in the Linux kernel. A local\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2022-20369)\n\nDuoming Zhou discovered that race conditions existed in the timer handling\nimplementation of the Linux kernel's Rose X.25 protocol layer, resulting in\nuse-after-free vulnerabilities. A local attacker could use this to cause a\ndenial of service (system crash). (CVE-2022-2318)\n\nRoger Pau Monné discovered that the Xen virtual block driver in the Linux\nkernel did not properly initialize memory pages to be used for shared\ncommunication with the backend. A local attacker could use this to expose\nsensitive information (guest kernel memory). (CVE-2022-26365)\n\nPawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani Rehana, Nir Shildan\nand Ariel Sabba discovered that some Intel processors with Enhanced\nIndirect Branch Restricted Speculation (eIBRS) did not properly handle RET\ninstructions after a VM exits. A local attacker could potentially use this\nto expose sensitive information. (CVE-2022-26373)\n\nEric Biggers discovered that a use-after-free vulnerability existed in the\nio_uring subsystem in the Linux kernel. A local attacker could possibly use\nthis to cause a denial of service (system crash) or possibly execute\narbitrary code. (CVE-2022-3176)\n\nRoger Pau Monné discovered that the Xen paravirtualization frontend in the\nLinux kernel did not properly initialize memory pages to be used for shared\ncommunication with the backend. A local attacker could use this to expose\nsensitive information (guest kernel memory). (CVE-2022-33740)\n\nIt was discovered that the Xen paravirtualization frontend in the Linux\nkernel incorrectly shared unrelated data when communicating with certain\nbackends. A local attacker could use this to cause a denial of service\n(guest crash) or expose sensitive information (guest kernel memory).\n(CVE-2022-33741, CVE-2022-33742)\n\nOleksandr Tyshchenko discovered that the Xen paravirtualization platform in\nthe Linux kernel on ARM platforms contained a race condition in certain\nsituations. An attacker in a guest VM could use this to cause a denial of\nservice in the host OS. (CVE-2022-33744)\n\nIt was discovered that the Netlink Transformation (XFRM) subsystem in the\nLinux kernel contained a reference counting error. A local attacker could\nuse this to cause a denial of service (system crash). (CVE-2022-36879)\n\n","modified":"2026-02-10T04:42:48Z","published":"2022-10-14T18:46:48Z","related":["UBUNTU-CVE-2021-4159","UBUNTU-CVE-2022-20369","UBUNTU-CVE-2022-2318","UBUNTU-CVE-2022-26365","UBUNTU-CVE-2022-26373","UBUNTU-CVE-2022-3176","UBUNTU-CVE-2022-33740","UBUNTU-CVE-2022-33741","UBUNTU-CVE-2022-33742","UBUNTU-CVE-2022-33744","UBUNTU-CVE-2022-36879"],"upstream":["CVE-2021-4159","CVE-2022-20369","CVE-2022-2318","CVE-2022-26365","CVE-2022-26373","CVE-2022-3176","CVE-2022-33740","CVE-2022-33741","CVE-2022-33742","CVE-2022-33744","CVE-2022-36879","UBUNTU-CVE-2021-4159","UBUNTU-CVE-2022-20369","UBUNTU-CVE-2022-2318","UBUNTU-CVE-2022-26365","UBUNTU-CVE-2022-26373","UBUNTU-CVE-2022-3176","UBUNTU-CVE-2022-33740","UBUNTU-CVE-2022-33741","UBUNTU-CVE-2022-33742","UBUNTU-CVE-2022-33744","UBUNTU-CVE-2022-36879"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5682-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-4159"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-2318"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-3176"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-20369"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-26365"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-26373"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-33740"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-33741"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-33742"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-33744"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-36879"}],"affected":[{"package":{"name":"linux-aws-5.4","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/linux-aws-5.4@5.4.0-1086.93~18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1086.93~18.04.1"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"5.4.0-1086.93~18.04.1","binary_name":"linux-aws-5.4-cloud-tools-5.4.0-1086"},{"binary_version":"5.4.0-1086.93~18.04.1","binary_name":"linux-aws-5.4-headers-5.4.0-1086"},{"binary_version":"5.4.0-1086.93~18.04.1","binary_name":"linux-aws-5.4-tools-5.4.0-1086"},{"binary_version":"5.4.0-1086.93~18.04.1","binary_name":"linux-buildinfo-5.4.0-1086-aws"},{"binary_version":"5.4.0-1086.93~18.04.1","binary_name":"linux-cloud-tools-5.4.0-1086-aws"},{"binary_version":"5.4.0-1086.93~18.04.1","binary_name":"linux-headers-5.4.0-1086-aws"},{"binary_version":"5.4.0-1086.93~18.04.1","binary_name":"linux-image-unsigned-5.4.0-1086-aws"},{"binary_version":"5.4.0-1086.93~18.04.1","binary_name":"linux-modules-5.4.0-1086-aws"},{"binary_version":"5.4.0-1086.93~18.04.1","binary_name":"linux-modules-extra-5.4.0-1086-aws"},{"binary_version":"5.4.0-1086.93~18.04.1","binary_name":"linux-tools-5.4.0-1086-aws"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5682-1.json","cves_map":{"cves":[{"id":"CVE-2021-4159","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2022-2318","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2022-3176","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"}]},{"id":"CVE-2022-20369","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2022-26365","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2022-26373","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2022-33740","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2022-33741","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2022-33742","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2022-33744","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2022-36879","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:18.04:LTS"}}}],"schema_version":"1.7.3"}