Division by Zero Affecting qemu-project/qemu package, versions [,8.1.0-rc3)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-UNMANAGED-QEMUPROJECTQEMU-5891142
  • published11 Sept 2023
  • disclosed11 Sept 2023
  • creditUnknown

Introduced: 11 Sep 2023

CVE-2023-42467  (opens in a new tab)
CWE-369  (opens in a new tab)

How to fix?

Upgrade qemu-project/qemu to version 8.1.0-rc3 or higher.

Overview

Affected versions of this package are vulnerable to Division by Zero when the scsi_disk_reset() function in scsi-disk.c is called. An attacker can cause a denial of service for the affected hosts and guest by manipulating s->qdev.blocksize to be 256.

CVSS Scores

version 3.1