CVE-2020-12829

LOW
3.8
CVSS Score
Published: August 31, 2020 at 02:41 PM UTC
Updated: June 17, 2026 at 02:52 AM UTC
3 products affected across 3 vendorsDebian LinuxUbuntu LinuxQEMU

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Severity
LOW3.8
Exploit prediction
EPSS 0.4%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_MISCIssue TrackingPatchThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1808510
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/4467-1/
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
https://www.debian.org/security/2020/dsa-4760

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-190

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