{"id":"AZL-27382","summary":"CVE-2023-1206 affecting package kernel for versions less than 5.15.126.1-1","details":"A hash collision flaw was found in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when a user makes a new kind of SYN flood attack. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95%.","modified":"2026-04-01T05:09:09.527397Z","published":"2023-06-30T22:15:09Z","upstream":["CVE-2023-1206"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-1206"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.126.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-27382.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}