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CVE-2023-42467
Component Overview
Vulnerability Overview
Name
CVE-2023-42467
Source
NVD (
link
)
Debian (
link
)
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.
CWEs
CWE-369
Published Date
Sep 11, 2023
Updated Date
Jun 17, 2026
Workaround
-
Advisories
https://gitlab.com/qemu-project/qemu/-/issues/1813
Exploit
https://gitlab.com/qemu-project/qemu/-/issues/1813
Exploit
Analysis
#
Affected Component
Analysis
qemu
Patched
Vulnerability Ratings
#
5.5
CVSSv31
NaN
other
Others affected components
#
Name
Project
Project Version
Version
Status
qemu
buildroot
2025.02.x
9.2.0
Not Affected
qemu
buildroot
master
11.0.0
Not Affected
qemu
openwrt
master
10.1.3-r2
Not Affected
qemu
openwrt
openwrt-25.12
10.1.2-r1
Not Affected
qemu
yocto
master
11.0.1
Not Affected
qemu
yocto
scarthgap
8.2.7
Not Affected
Resolved with patches
#
qemu (yocto:kirkstone)
#
Title
Author
Resolve
1
hw/scsi/scsi-disk: Disallow block sizes smaller than 512
Thomas Huth <thuth@redhat.com>
CVE-2023-42467