{"id":"USN-5015-1","summary":"linux-oem-5.10 vulnerabilities","details":"It was discovered that the virtual file system implementation in the Linux\nkernel contained an unsigned to signed integer conversion error. A local\nattacker could use this to cause a denial of service (system crash) or\nexecute arbitrary code. (CVE-2021-33909)\n\nMichael Brown discovered that the Xen netback driver in the Linux kernel\ndid not properly handle malformed packets from a network PV frontend,\nleading to a use-after-free vulnerability. An attacker in a guest VM could\nuse this to cause a denial of service or possibly execute arbitrary code.\n(CVE-2021-28691)\n\nIt was discovered that the bluetooth subsystem in the Linux kernel did not\nproperly handle HCI device initialization failure, leading to a double-free\nvulnerability. An attacker could use this to cause a denial of service or\npossibly execute arbitrary code. (CVE-2021-3564)\n\nIt was discovered that the bluetooth subsystem in the Linux kernel did not\nproperly handle HCI device detach events, leading to a use-after-free\nvulnerability. An attacker could use this to cause a denial of service or\npossibly execute arbitrary code. (CVE-2021-3573)\n\nIt was discovered that the NFC implementation in the Linux kernel did not\nproperly handle failed connect events leading to a NULL pointer\ndereference. A local attacker could use this to cause a denial of service.\n(CVE-2021-3587)\n","modified":"2026-04-27T16:03:04.403689348Z","published":"2021-07-20T21:22:45Z","related":["UBUNTU-CVE-2021-28691","UBUNTU-CVE-2021-33909","UBUNTU-CVE-2021-3564","UBUNTU-CVE-2021-3573","UBUNTU-CVE-2021-3587"],"upstream":["CVE-2021-28691","CVE-2021-33909","CVE-2021-3564","CVE-2021-3573","CVE-2021-3587","UBUNTU-CVE-2021-28691","UBUNTU-CVE-2021-33909","UBUNTU-CVE-2021-3564","UBUNTU-CVE-2021-3573","UBUNTU-CVE-2021-3587"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5015-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3564"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3573"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3587"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-28691"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-33909"}],"affected":[{"package":{"name":"linux-oem-5.10","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/linux-oem-5.10@5.10.0-1038.40?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.0-1038.40"}]}],"versions":["5.10.0-1008.9","5.10.0-1011.12","5.10.0-1013.14","5.10.0-1014.15","5.10.0-1016.17","5.10.0-1017.18","5.10.0-1019.20","5.10.0-1021.22","5.10.0-1022.23","5.10.0-1023.24","5.10.0-1025.26","5.10.0-1026.27","5.10.0-1029.30","5.10.0-1032.33","5.10.0-1033.34","5.10.0-1034.35"],"ecosystem_specific":{"binaries":[{"binary_version":"5.10.0-1038.40","binary_name":"linux-buildinfo-5.10.0-1038-oem"},{"binary_version":"5.10.0-1038.40","binary_name":"linux-headers-5.10.0-1038-oem"},{"binary_version":"5.10.0-1038.40","binary_name":"linux-image-unsigned-5.10.0-1038-oem"},{"binary_version":"5.10.0-1038.40","binary_name":"linux-modules-5.10.0-1038-oem"},{"binary_version":"5.10.0-1038.40","binary_name":"linux-oem-5.10-headers-5.10.0-1038"},{"binary_version":"5.10.0-1038.40","binary_name":"linux-oem-5.10-tools-5.10.0-1038"},{"binary_version":"5.10.0-1038.40","binary_name":"linux-oem-5.10-tools-host"},{"binary_version":"5.10.0-1038.40","binary_name":"linux-tools-5.10.0-1038-oem"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2021-3564","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-2021-3573","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-3587","severity":[{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-28691","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-33909","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"}]}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5015-1.json"}}],"schema_version":"1.7.5"}