{"id":"AZL-27061","summary":"CVE-2023-2598 affecting package kernel for versions less than 5.15.116.1-1","details":"A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.","modified":"2026-04-21T04:24:01.055857Z","published":"2023-06-01T01:15:17Z","upstream":["CVE-2023-2598"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-2598"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.116.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-27061.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}