VulnerabilityModified
CVE-2023-42467
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.
MEDIUM 5.5EPSS 0.41%
Does this matter?
Lower severity and a low EPSS score (0.41%). Track it; it rarely justifies an emergency change on its own.
Description
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.41% probability · 35th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-369
- Affected
- qemu/qemu
- Source
- cve@mitre.org
References
- https://gitlab.com/qemu-project/qemu/-/commit/7cfcc79b0ab800959716738aff9419f53fc68c9c
- https://gitlab.com/qemu-project/qemu/-/issues/1813Exploit, Issue Tracking, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20231103-0005/
- https://gitlab.com/qemu-project/qemu/-/commit/7cfcc79b0ab800959716738aff9419f53fc68c9c
- https://gitlab.com/qemu-project/qemu/-/issues/1813Exploit, Issue Tracking, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20231103-0005/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.