CVE-2020-12829

Name: CVE-2020-12829
Creator: NVD / NIST
Published: 2020-08-31T15:15:10.463+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.8/10EPSS 0.37%

Last modified Jun 17, 2026

CVE-2020-12829 is a low-severity vulnerability rated 3.8/10 on the CVSS scale. In QEMU through 5.0.0, an integer overflow was found in the SM501 display driver implementation. This flaw occurs in the COPY_AREA macro while handling MMIO write operations through the sm501_2d_engine_write() callback. EPSS estimates a 0.37% chance of exploitation in the next 30 days.

Description

In QEMU through 5.0.0, an integer overflow was found in the SM501 display driver implementation. This flaw occurs in the COPY_AREA macro while handling MMIO write operations through the sm501_2d_engine_write() callback. A local attacker could abuse this flaw to crash the QEMU process in sm501_2d_operation() in hw/display/sm501.c on the host, resulting in a denial of service.

Metrics

CVSS 3.1

3.8/10

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

EPSS Probability

0.37%

29.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Qemu	Qemu	<= 5.0.1
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	20.04
Debian	Debian Linux	10.0

References

https://bugzilla.redhat.com/show_bug.cgi?id=1808510Issue Tracking, Patch, Third Party Advisory
https://usn.ubuntu.com/4467-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4760Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1808510Issue Tracking, Patch, Third Party Advisory
https://usn.ubuntu.com/4467-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4760Third Party Advisory

Timeline

Published: Aug 31, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12829?

How severe is CVE-2020-12829?

CVE-2020-12829 has a CVSS score of 3.8/10 (LOW severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12829?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-12829?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST