CVE-2020-12829

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.

• CWE-190

• 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

Published

Aug 31, 2020

Last Modified

Jun 17, 2026

Status

Modified

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