{"schemaVersion":3,"id":"USN-6441-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-xilinx-zynqmp vulnerabilities\n\nRoss Lagerwall discovered that the Xen netback backend driver in the Linux\nkernel did not properly handle certain unusual packets from a\nparavirtualized network frontend, leading to a buffer overflow. An attacker\nin a guest VM could use this to cause a denial of service (host system\ncrash) or possibly execute arbitrary code. (CVE-2023-34319)\n\nKyle Zeng discovered that the networking stack implementation in the Linux\nkernel did not properly validate skb object size in certain conditions. An\nattacker could use this cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2023-42752)\n\nKyle Zeng discovered that the netfiler subsystem in the Linux kernel did\nnot properly calculate array offsets, leading to a out-of-bounds write\nvulnerability. A local user could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2023-42753)\n\nKyle Zeng discovered that the IPv4 Resource Reservation Protocol (RSVP)\nclassifier implementation in the Linux kernel contained an out-of-bounds\nread vulnerability. A local attacker could use this to cause a denial of\nservice (system crash). Please note that kernel packet classifier support\nfor RSVP has been removed to resolve this vulnerability. (CVE-2023-42755)\n\nKyle Zeng discovered that the netfilter subsystem in the Linux kernel\ncontained a race condition in IP set operations in certain situations. A\nlocal attacker could use this to cause a denial of service (system crash).\n(CVE-2023-42756)\n\nBing-Jhong Billy Jheng discovered that the Unix domain socket\nimplementation in the Linux kernel contained a race condition in certain\nsituations, leading to a use-after-free vulnerability. A local attacker\ncould use this to cause a denial of service (system crash) or possibly\nexecute arbitrary code. (CVE-2023-4622)\n\nBudimir Markovic discovered that the qdisc implementation in the Linux\nkernel did not properly validate inner classes, leading to a use-after-free\nvulnerability. A local user could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2023-4623)\n\nAlex Birnberg discovered that the netfilter subsystem in the Linux kernel\ndid not properly validate register length, leading to an out-of- bounds\nwrite vulnerability. A local attacker could possibly use this to cause a\ndenial of service (system crash). (CVE-2023-4881)\n\nIt was discovered that the Quick Fair Queueing scheduler implementation in\nthe Linux kernel did not properly handle network packets in certain\nconditions, leading to a use after free vulnerability. A local attacker\ncould use this to cause a denial of service (system crash) or possibly\nexecute arbitrary code. (CVE-2023-4921)","dates":{"published":"2023-10-19T20:10:02.000Z","modified":"2026-06-03T14:04:20.995Z","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":"< 5.4.0-165.182","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-165.182","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":"< 5.4.0-1112.121","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1112.121","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-aws-5.4","name":"linux-aws-5.4","label":"linux-aws-5.4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-aws-5.4","purlType":"deb","versions":[{"text":"< 5.4.0-1112.121~18.04.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1112.121~18.04.2","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-azure","name":"linux-azure","label":"linux-azure","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-azure","purlType":"deb","versions":[{"text":"< 5.4.0-1118.125","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1118.125","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-azure-5.4","name":"linux-azure-5.4","label":"linux-azure-5.4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-azure-5.4","purlType":"deb","versions":[{"text":"< 5.4.0-1118.125~18.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1118.125~18.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-gcp","name":"linux-gcp","label":"linux-gcp","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-gcp","purlType":"deb","versions":[{"text":"< 5.4.0-1116.125","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1116.125","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-gkeop","name":"linux-gkeop","label":"linux-gkeop","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-gkeop","purlType":"deb","versions":[{"text":"< 5.4.0-1079.83","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1079.83","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-hwe-5.4","name":"linux-hwe-5.4","label":"linux-hwe-5.4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-hwe-5.4","purlType":"deb","versions":[{"text":"< 5.4.0-165.182~18.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-165.182~18.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-ibm","name":"linux-ibm","label":"linux-ibm","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-ibm","purlType":"deb","versions":[{"text":"< 5.4.0-1059.64","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1059.64","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-ibm-5.4","name":"linux-ibm-5.4","label":"linux-ibm-5.4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-ibm-5.4","purlType":"deb","versions":[{"text":"< 5.4.0-1059.64~18.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1059.64~18.04.1","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":"< 5.4.0-1101.107","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1101.107","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-oracle","name":"linux-oracle","label":"linux-oracle","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-oracle","purlType":"deb","versions":[{"text":"< 5.4.0-1111.120","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1111.120","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-oracle-5.4","name":"linux-oracle-5.4","label":"linux-oracle-5.4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-oracle-5.4","purlType":"deb","versions":[{"text":"< 5.4.0-1111.120~18.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1111.120~18.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-xilinx-zynqmp","name":"linux-xilinx-zynqmp","label":"linux-xilinx-zynqmp","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-xilinx-zynqmp","purlType":"deb","versions":[{"text":"< 5.4.0-1032.36","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1032.36","eol":null,"hubHref":null}],"affectedCount":14,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-6441-1","label":"ubuntu.com/security/notices/USN-6441-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-4622","label":"ubuntu.com/security/CVE-2023-4622","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-4623","label":"ubuntu.com/security/CVE-2023-4623","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-4881","label":"ubuntu.com/security/CVE-2023-4881","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-4921","label":"ubuntu.com/security/CVE-2023-4921","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-34319","label":"ubuntu.com/security/CVE-2023-34319","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-42752","label":"ubuntu.com/security/CVE-2023-42752","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-42753","label":"ubuntu.com/security/CVE-2023-42753","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-42755","label":"ubuntu.com/security/CVE-2023-42755","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-42756","label":"ubuntu.com/security/CVE-2023-42756","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2023-34319","CVE-2023-42752","CVE-2023-42753","CVE-2023-42755","CVE-2023-42756","CVE-2023-4622","CVE-2023-4623","CVE-2023-4881","CVE-2023-4921"],"downstream":[],"duplicates":[],"related":["CVE-2023-34319","CVE-2023-42752","CVE-2023-42753","CVE-2023-42755","CVE-2023-42756","CVE-2023-4622","CVE-2023-4623","CVE-2023-4881","CVE-2023-4921"]},"timeline":[{"kind":"published","date":"2023-10-19T20:10:02.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-03T14:04:20.995Z","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":"2026-10-19T13:22:58.512Z","stale":false,"partial":false}}