CVE-2023-42467

Public Exploit

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Third-Party Advisory gitlab.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://gitlab.com/qemu-project/qemu/-/issues/1813 third party advisory issue tracking exploit
https://gitlab.com/qemu-project/qemu/-/commit/7cfcc79b0ab800959716738aff9419f53fc68c9c
https://security.netapp.com/advisory/ntap-20231103-0005/

Frequently Asked Questions

What is the severity of CVE-2023-42467?
CVE-2023-42467 has been scored as a medium severity vulnerability.
How to fix CVE-2023-42467?
To fix CVE-2023-42467, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-42467 being actively exploited in the wild?
It is possible that CVE-2023-42467 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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