CVE-2020-25742

QEMU: scsi: lsi: null pointer dereference during memory move

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Severity

Low

Red Hat Product Security

3.2

CVSS 3.1

Review impact separately from score.

Published · June 24, 2020

Updated · June 28, 2026

Description

A NULL pointer dereference flaw was found in the LSI53C895A SCSI Host Bus Adapter emulator of QEMU. This flaw occurs while processing 'Memory Move' instructions to move data between DMA memory and I/O address space via lsi_memcpy(). This flaw allows a guest user or process to crash the QEMU process, resulting in a denial of service.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 3.2
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L

CWE-476 · NULL Pointer Dereference