hw/display/bochs-display.c in QEMU 4.0.0 does not ensure a sufficient PCI config space allocation, leading to a buffer overflow involving the PCIe extended config space.
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html
https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01959.html
Source: MITRE
Published: 2020-03-10
Updated: 2020-05-28
Type: CWE-120
Base Score: 4.4
Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 3.4
Severity: MEDIUM
Base Score: 5.8
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Impact Score: 4.7
Exploitability Score: 1
Severity: MEDIUM