Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.
https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02402.html
https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02396.html
Source: MITRE
Published: 2018-10-19
Updated: 2021-08-04
Type: CWE-190
Base Score: 2.1
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 3.9
Severity: LOW
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM