Out-of-bounds Read in Qemu
CVE-2019-20808
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.
Vulnerability class: Buffer Overflow
EPSS: 0.003 (25.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Qemu — versions 4.1.0
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Issue Tracking)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-20808?
- CVE-2019-20808 is a medium-severity vulnerability in Qemu, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2020-12-31.
- How severe is CVE-2019-20808?
- Medium severity. CVSS v3 base score is 6.5 out of 10.