{"id":"AZL-27675","summary":"CVE-2023-3611 affecting package kernel for versions less than 5.15.122.1-2","details":"An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.\n\nThe qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks.\n\nWe recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.","modified":"2026-04-01T05:09:25.105777Z","published":"2023-07-21T21:15:11Z","upstream":["CVE-2023-3611"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3611"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.122.1-2"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-27675.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"}]}