{"id":"USN-5115-1","summary":"linux-oem-5.10 vulnerabilities","details":"It was discovered that a race condition existed in the Atheros Ath9k WiFi\ndriver in the Linux kernel. An attacker could possibly use this to expose\nsensitive information (WiFi network traffic). (CVE-2020-3702)\n\nOfek Kirzner, Adam Morrison, Benedict Schlueter, and Piotr Krysiuk\ndiscovered that the BPF verifier in the Linux kernel missed possible\nmispredicted branches due to type confusion, allowing a side-channel\nattack. An attacker could use this to expose sensitive information.\n(CVE-2021-33624)\n\nBenedict Schlueter discovered that the BPF subsystem in the Linux kernel\ndid not properly protect against Speculative Store Bypass (SSB) side-\nchannel attacks in some situations. A local attacker could possibly use\nthis to expose sensitive information. (CVE-2021-34556)\n\nPiotr Krysiuk discovered that the BPF subsystem in the Linux kernel did not\nproperly protect against Speculative Store Bypass (SSB) side-channel\nattacks in some situations. A local attacker could possibly use this to\nexpose sensitive information. (CVE-2021-35477)\n\nIt was discovered that the tracing subsystem in the Linux kernel did not\nproperly keep track of per-cpu ring buffer state. A privileged attacker\ncould use this to cause a denial of service. (CVE-2021-3679)\n\nIt was discovered that the Option USB High Speed Mobile device driver in\nthe Linux kernel did not properly handle error conditions. A physically\nproximate attacker could use this to cause a denial of service (system\ncrash) or possibly execute arbitrary code. (CVE-2021-37159)\n\nAlois Wohlschlager discovered that the overlay file system in the Linux\nkernel did not restrict private clones in some situations. An attacker\ncould use this to expose sensitive information. (CVE-2021-3732)\n\nIt was discovered that the btrfs file system in the Linux kernel did not\nproperly handle removing a non-existent device id. An attacker with\nCAP_SYS_ADMIN could use this to cause a denial of service. (CVE-2021-3739)\n\nIt was discovered that the Qualcomm IPC Router protocol implementation in\nthe Linux kernel did not properly validate metadata in some situations. A\nlocal attacker could use this to cause a denial of service (system crash)\nor expose sensitive information. (CVE-2021-3743)\n\nIt was discovered that the virtual terminal (vt) device implementation in\nthe Linux kernel contained a race condition in its ioctl handling that led\nto an out-of-bounds read vulnerability. A local attacker could possibly use\nthis to expose sensitive information. (CVE-2021-3753)\n\nIt was discovered that the Linux kernel did not properly account for the\nmemory usage of certain IPC objects. A local attacker could use this to\ncause a denial of service (memory exhaustion). (CVE-2021-3759)\n\nIt was discovered that the BPF subsystem in the Linux kernel contained an\ninteger overflow in its hash table implementation. A local attacker could\nuse this to cause a denial of service (system crash) or possibly execute\narbitrary code. (CVE-2021-38166)\n\nIt was discovered that the MAX-3421 host USB device driver in the Linux\nkernel did not properly handle device removal events. A physically\nproximate attacker could use this to cause a denial of service (system\ncrash). (CVE-2021-38204)\n\nIt was discovered that the Xilinx 10/100 Ethernet Lite device driver in the\nLinux kernel could report pointer addresses in some situations. An attacker\ncould use this information to ease the exploitation of another\nvulnerability. (CVE-2021-38205)\n\nIt was discovered that the ext4 file system in the Linux kernel contained a\nrace condition when writing xattrs to an inode. A local attacker could use\nthis to cause a denial of service or possibly gain administrative\nprivileges. (CVE-2021-40490)\n\nIt was discovered that the 6pack network protocol driver in the Linux\nkernel did not properly perform validation checks. A privileged attacker\ncould use this to cause a denial of service (system crash) or execute\narbitrary code. (CVE-2021-42008)\n","modified":"2026-02-10T04:42:21Z","published":"2021-10-20T18:39:34Z","related":["UBUNTU-CVE-2020-3702","UBUNTU-CVE-2021-33624","UBUNTU-CVE-2021-34556","UBUNTU-CVE-2021-35477","UBUNTU-CVE-2021-3679","UBUNTU-CVE-2021-37159","UBUNTU-CVE-2021-3732","UBUNTU-CVE-2021-3739","UBUNTU-CVE-2021-3743","UBUNTU-CVE-2021-3753","UBUNTU-CVE-2021-3759","UBUNTU-CVE-2021-38166","UBUNTU-CVE-2021-38204","UBUNTU-CVE-2021-38205","UBUNTU-CVE-2021-40490","UBUNTU-CVE-2021-42008"],"upstream":["CVE-2020-3702","CVE-2021-33624","CVE-2021-34556","CVE-2021-35477","CVE-2021-3679","CVE-2021-37159","CVE-2021-3732","CVE-2021-3739","CVE-2021-3743","CVE-2021-3753","CVE-2021-3759","CVE-2021-38166","CVE-2021-38204","CVE-2021-38205","CVE-2021-40490","CVE-2021-42008","UBUNTU-CVE-2020-3702","UBUNTU-CVE-2021-33624","UBUNTU-CVE-2021-34556","UBUNTU-CVE-2021-35477","UBUNTU-CVE-2021-3679","UBUNTU-CVE-2021-37159","UBUNTU-CVE-2021-3732","UBUNTU-CVE-2021-3739","UBUNTU-CVE-2021-3743","UBUNTU-CVE-2021-3753","UBUNTU-CVE-2021-3759","UBUNTU-CVE-2021-38166","UBUNTU-CVE-2021-38204","UBUNTU-CVE-2021-38205","UBUNTU-CVE-2021-40490","UBUNTU-CVE-2021-42008"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5115-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-3702"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3679"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3732"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3739"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3743"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3753"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3759"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-33624"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-34556"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-35477"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-37159"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-38166"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-38204"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-38205"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-40490"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-42008"}],"affected":[{"package":{"name":"linux-oem-5.10","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/linux-oem-5.10@5.10.0-1050.52?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.0-1050.52"}]}],"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","5.10.0-1038.40","5.10.0-1044.46","5.10.0-1045.47","5.10.0-1049.51"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"linux-buildinfo-5.10.0-1050-oem","binary_version":"5.10.0-1050.52"},{"binary_name":"linux-headers-5.10.0-1050-oem","binary_version":"5.10.0-1050.52"},{"binary_name":"linux-image-unsigned-5.10.0-1050-oem","binary_version":"5.10.0-1050.52"},{"binary_name":"linux-modules-5.10.0-1050-oem","binary_version":"5.10.0-1050.52"},{"binary_name":"linux-oem-5.10-headers-5.10.0-1050","binary_version":"5.10.0-1050.52"},{"binary_name":"linux-oem-5.10-tools-5.10.0-1050","binary_version":"5.10.0-1050.52"},{"binary_name":"linux-oem-5.10-tools-host","binary_version":"5.10.0-1050.52"},{"binary_name":"linux-tools-5.10.0-1050-oem","binary_version":"5.10.0-1050.52"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5115-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2020-3702","severity":[{"score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-3679","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":"low","type":"Ubuntu"}]},{"id":"CVE-2021-3732","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-3739","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":"low","type":"Ubuntu"}]},{"id":"CVE-2021-3743","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-2021-3753","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-2021-3759","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-2021-33624","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-2021-34556","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-35477","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-37159","severity":[{"score":"CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2021-38166","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-2021-38204","severity":[{"score":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2021-38205","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2021-40490","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-42008","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":"low","type":"Ubuntu"}]}]}}}],"schema_version":"1.7.3"}