CVE-2019-20808

medium

Description

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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1841136

https://git.qemu.org/?p=qemu.git;a=commit;h=aab0e2a661b2b6bf7915c0aefe807fb60d6d9d13

https://security.netapp.com/advisory/ntap-20210205-0003/

Details

Source: MITRE

Published: 2020-12-31

Updated: 2021-03-31

Type: CWE-125

Risk Information

CVSS v2

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

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Impact Score: 4

Exploitability Score: 2

Severity: MEDIUM