{"id":"AZL-6565","summary":"CVE-2021-33909 affecting package kernel for versions less than 5.10.78.1-1","details":"fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.","modified":"2026-04-01T05:20:36.443582Z","published":"2021-07-20T19:15:09Z","upstream":["CVE-2021-33909"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33909"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.78.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-6565.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"}]}