Divide By Zero Affecting qemu package, versions <1:8.1.1+ds-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-DEBIAN13-QEMU-5891652
  • published11 Sept 2023
  • disclosed11 Sept 2023

Introduced: 11 Sep 2023

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

How to fix?

Upgrade Debian:13 qemu to version 1:8.1.1+ds-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent s->qdev.blocksize from being 256. This stops QEMU and the guest immediately.

CVSS Scores

version 3.1