{"schema_version":"1.7.5","id":"CVE-2021-3638","published":"2022-03-03T23:15:08.147Z","modified":"2026-07-08T06:02:35.921659591Z","related":["SUSE-SU-2023:3444-1","SUSE-SU-2023:3721-1","SUSE-SU-2023:4056-1","SUSE-SU-2023:4662-1","SUSE-SU-2024:0589-1"],"details":"An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while handling MMIO write operations when the guest provides invalid values for the destination display parameters. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/qemu/qemu","events":[{"introduced":"131b9a05705636086699df15d4a6d328bb2585e8"},{"last_affected":"f9baca549e44791be0dd98de15add3d8452a8af0"}],"database_specific":{"cpe":"cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.0.0"},{"last_affected":"6.1.0"}],"source":"CPE_RANGE"}}],"versions":["v6.1.0","v6.0.0","v6.1.0-rc4","v6.1.0-rc3","v6.1.0-rc2","v6.1.0-rc1","v6.1.0-rc0","v6.0.0-rc5","v6.0.0-rc4","v6.0.0-rc3","v6.0.0-rc2","v6.0.0-rc1","v6.0.0-rc0","v5.2.0","v5.2.0-rc4","v5.2.0-rc3","v5.2.0-rc2","v5.2.0-rc1","v5.2.0-rc0","v5.0.0","v5.1.0","v5.1.0-rc3","v5.1.0-rc2","v5.1.0-rc1","v5.1.0-rc0","v4.2.0","v5.0.0-rc4","v5.0.0-rc3","v5.0.0-rc2","v5.0.0-rc1","v5.0.0-rc0","v4.2.0-rc5","v4.2.0-rc4","v4.2.0-rc3","v4.2.0-rc2","v4.2.0-rc1","v4.2.0-rc0","v4.1.0","v4.0.0","v4.1.0-rc5","v4.1.0-rc4","v4.1.0-rc3","v4.1.0-rc2","v4.1.0-rc1","v4.1.0-rc0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3638.json"}},{"ranges":[{"type":"GIT","repo":"https://gitlab.com/qemu-project/qemu","events":[{"introduced":"131b9a05705636086699df15d4a6d328bb2585e8"},{"last_affected":"f9baca549e44791be0dd98de15add3d8452a8af0"}],"database_specific":{"cpe":"cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.0.0"},{"last_affected":"6.1.0"}],"source":"CPE_RANGE"}}],"versions":["v6.1.0","v6.0.0","v6.1.0-rc4","v6.1.0-rc3","v6.1.0-rc2","v6.1.0-rc1","v6.1.0-rc0","v6.0.0-rc5","v6.0.0-rc4","v6.0.0-rc3","v6.0.0-rc2","v6.0.0-rc1","v6.0.0-rc0","v5.2.0","v5.2.0-rc4","v5.2.0-rc3","v5.2.0-rc2","v5.2.0-rc1","v5.2.0-rc0","v5.0.0","v5.1.0","v5.1.0-rc3","v5.1.0-rc2","v5.1.0-rc1","v5.1.0-rc0","v4.2.0","v5.0.0-rc4","v5.0.0-rc3","v5.0.0-rc2","v5.0.0-rc1","v5.0.0-rc0","v4.2.0-rc5","v4.2.0-rc4","v4.2.0-rc3","v4.2.0-rc2","v4.2.0-rc1","v4.2.0-rc0","v4.1.0","v4.0.0","v4.1.0-rc5","v4.1.0-rc4","v4.1.0-rc3","v4.1.0-rc2","v4.1.0-rc1","v4.1.0-rc0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3638.json"}}],"references":[{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3J632SLFRK/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20220407-0003/"},{"type":"ADVISORY","url":"https://ubuntu.com/security/CVE-2021-3638"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1979858"},{"type":"FIX","url":"https://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg01682.html"}],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"36"},{"last_affected":"36"},{"introduced":"37"},{"last_affected":"37"}],"source":"CPE_STRING","vendor_product":"fedoraproject:fedora"}]},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H"}]}