{"schemaVersion":3,"id":"USN-6739-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities\n\nIt was discovered that a race condition existed in the instruction emulator\nof the Linux kernel on Arm 64-bit systems. A local attacker could use this\nto cause a denial of service (system crash). (CVE-2022-20422)\n\nWei Chen discovered that a race condition existed in the TIPC protocol\nimplementation in the Linux kernel, leading to a null pointer dereference\nvulnerability. A local attacker could use this to cause a denial of service\n(system crash). (CVE-2023-1382)\n\nJose Oliveira and Rodrigo Branco discovered that the Spectre Variant 2\nmitigations with prctl syscall were insufficient in some situations. A\nlocal attacker could possibly use this to expose sensitive information.\n(CVE-2023-1998)\n\nDaniele Antonioli discovered that the Secure Simple Pairing and Secure\nConnections pairing in the Bluetooth protocol could allow an\nunauthenticated user to complete authentication without pairing\ncredentials. A physically proximate attacker placed between two Bluetooth\ndevices could use this to subsequently impersonate one of the paired\ndevices. (CVE-2023-24023)\n\nshanzhulig discovered that the DRM subsystem in the Linux kernel contained\na race condition when performing certain operation while handling driver\nunload, leading to a use-after-free vulnerability. A local attacker could\nuse this to cause a denial of service (system crash) or possibly execute\narbitrary code. (CVE-2023-51043)\n\nIt was discovered that a race condition existed in the Bluetooth subsystem\nof the Linux kernel, leading to a use-after-free vulnerability. A local\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2023-51779)\n\nIt was discovered that the device mapper driver in the Linux kernel did not\nproperly validate target size during certain memory allocations. A local\nattacker could use this to cause a denial of service (system crash).\n(CVE-2023-52429, CVE-2024-23851)\n\nSeveral security issues were discovered in the Linux kernel.\nAn attacker could possibly use these to compromise the system.\nThis update corrects flaws in the following subsystems:\n  - Architecture specifics;\n  - ACPI drivers;\n  - I2C subsystem;\n  - Media drivers;\n  - JFS file system;\n  - IPv4 Networking;\n  - Open vSwitch;\n(CVE-2021-46966, CVE-2021-46936, CVE-2023-52451, CVE-2019-25162,\nCVE-2023-52445, CVE-2023-52600, CVE-2021-46990, CVE-2021-46955,\nCVE-2023-52603)","dates":{"published":"2024-04-19T13:23:13.000Z","modified":"2026-08-06T03:04:10.900Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"linux","name":"linux","label":"linux","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux","purlType":"deb","versions":[{"text":"< 4.4.0-253.287","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.4.0-253.287","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-aws","name":"linux-aws","label":"linux-aws","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-aws","purlType":"deb","versions":[{"text":"< 4.4.0-1130.136","noFixRecorded":false,"fixedIn":null},{"text":"< 4.4.0-1168.183","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.4.0-1130.136 | < 4.4.0-1168.183","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-kvm","name":"linux-kvm","label":"linux-kvm","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-kvm","purlType":"deb","versions":[{"text":"< 4.4.0-1131.141","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.4.0-1131.141","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-lts-xenial","name":"linux-lts-xenial","label":"linux-lts-xenial","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-lts-xenial","purlType":"deb","versions":[{"text":"< 4.4.0-253.287~14.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.4.0-253.287~14.04.1","eol":null,"hubHref":null}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-6739-1","label":"ubuntu.com/security/notices/USN-6739-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-25162","label":"ubuntu.com/security/CVE-2019-25162","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-46936","label":"ubuntu.com/security/CVE-2021-46936","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-46955","label":"ubuntu.com/security/CVE-2021-46955","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-46966","label":"ubuntu.com/security/CVE-2021-46966","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-46990","label":"ubuntu.com/security/CVE-2021-46990","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-20422","label":"ubuntu.com/security/CVE-2022-20422","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-1382","label":"ubuntu.com/security/CVE-2023-1382","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-1998","label":"ubuntu.com/security/CVE-2023-1998","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-24023","label":"ubuntu.com/security/CVE-2023-24023","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-51043","label":"ubuntu.com/security/CVE-2023-51043","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-51779","label":"ubuntu.com/security/CVE-2023-51779","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-52429","label":"ubuntu.com/security/CVE-2023-52429","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-52445","label":"ubuntu.com/security/CVE-2023-52445","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-52451","label":"ubuntu.com/security/CVE-2023-52451","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-52600","label":"ubuntu.com/security/CVE-2023-52600","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-52603","label":"ubuntu.com/security/CVE-2023-52603","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2024-23851","label":"ubuntu.com/security/CVE-2024-23851","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2019-25162","CVE-2021-46936","CVE-2021-46955","CVE-2021-46966","CVE-2021-46990","CVE-2022-20422","CVE-2023-1382","CVE-2023-1998","CVE-2023-24023","CVE-2023-51043","CVE-2023-51779","CVE-2023-52429","CVE-2023-52445","CVE-2023-52451","CVE-2023-52600","CVE-2023-52603","CVE-2024-23851"],"downstream":[],"duplicates":[],"related":["CVE-2019-25162","CVE-2021-46936","CVE-2021-46955","CVE-2021-46966","CVE-2021-46990","CVE-2022-20422","CVE-2023-1382","CVE-2023-1998","CVE-2023-24023","CVE-2023-51043","CVE-2023-51779","CVE-2023-52429","CVE-2023-52445","CVE-2023-52451","CVE-2023-52600","CVE-2023-52603","CVE-2024-23851"]},"timeline":[{"kind":"published","date":"2024-04-19T13:23:13.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-08-06T03:04:10.900Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T11:52:56.627Z","stale":false,"partial":false}}