Medium severity · published Sep 11, 2023
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…
5.5
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QE
Qemu · Qemu
through 8.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-42467
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-42467
gitlab.com
https://gitlab.com/qemu-project/qemu/-/commit/7cfcc79b0ab800959716738aff9419f53fc68c9c
Exploit
https://gitlab.com/qemu-project/qemu/-/issues/1813
security.netapp.com
https://security.netapp.com/advisory/ntap-20231103-0005/
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