{"id":"AZL-9619","summary":"CVE-2021-4207 affecting package qemu for versions less than 6.2.0-13","details":"A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values `cursor-\u003eheader.width` and `cursor-\u003eheader.height` can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. A malicious privileged guest user could use this flaw to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.","modified":"2026-04-01T05:23:42.826848Z","published":"2022-04-29T17:15:20Z","upstream":["CVE-2021-4207"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4207"}],"affected":[{"package":{"name":"qemu","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/qemu"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.2.0-13"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-9619.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"}]}