CVE-2020-12829
LOWQEMU < 5.0.1 - Denial of Service via Integer Overflow in SM501 Display Driver
Title source: llmDescription
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.
References (3)
Core 3
Core References
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4467-1/
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1808510
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2020/dsa-4760
Scores
CVSS v3
3.8
EPSS
0.0012
EPSS Percentile
30.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
Details
CWE
CWE-190
Status
published
Products (5)
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
18.04
canonical/ubuntu_linux
20.04
debian/debian_linux
10.0
qemu/qemu
< 5.0.1
Published
Aug 31, 2020
Tracked Since
Feb 18, 2026