{"id":"CVE-2019-20808","details":"In QEMU 4.1.0, an out-of-bounds read flaw was found in the ATI VGA implementation. It occurs in the ati_cursor_define() routine while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.","modified":"2026-07-08T16:08:04.871851Z","published":"2020-12-31T01:15:12.427Z","references":[{"type":"WEB","url":"https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=aab0e2a661b2b6bf7915c0aefe807fb60d6d9d13"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210205-0003/"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1841136"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/qemu/qemu","events":[{"introduced":"9e06029aea3b2eca1d5261352e695edc1e7d7b8b"},{"last_affected":"9e06029aea3b2eca1d5261352e695edc1e7d7b8b"}],"database_specific":{"source":"CPE_STRING","cpe":"cpe:2.3:a:qemu:qemu:4.1.0:-:*:*:*:*:*:*","extracted_events":[{"introduced":"4.1.0-NA"},{"last_affected":"4.1.0-NA"}]}}],"versions":["4.1.0-NA","v4.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-20808.json"}},{"ranges":[{"type":"GIT","repo":"https://gitlab.com/qemu-project/qemu","events":[{"introduced":"9e06029aea3b2eca1d5261352e695edc1e7d7b8b"},{"last_affected":"9e06029aea3b2eca1d5261352e695edc1e7d7b8b"}],"database_specific":{"cpe":"cpe:2.3:a:qemu:qemu:4.1.0:-:*:*:*:*:*:*","extracted_events":[{"introduced":"4.1.0-NA"},{"last_affected":"4.1.0-NA"}],"source":"CPE_STRING"}}],"versions":["4.1.0-NA","v4.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-20808.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H"}]}