PT-2023-4946 · Qemu+9 · Qemu+9
Chuhong Yuan
·
Published
2023-08-06
·
Updated
2025-02-13
·
CVE-2023-42467
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
QEMU versions through 8.0.0
Description
The issue is related to a division by zero in the
scsi disk reset function in hw/scsi/scsi-disk.c due to incorrect block size checking by scsi disk emulate mode select. This can cause QEMU and the guest to stop immediately. Exploitation of this issue may allow a remote attacker to cause a denial of service.Recommendations
For QEMU versions through 8.0.0, as a temporary workaround, consider disabling the
scsi disk reset function until a patch is available. Restrict access to the hw/scsi/scsi-disk.c module to minimize the risk of exploitation. Avoid using a block size of 256 in the s->qdev.blocksize variable until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploit
Divide By Zero
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Linuxmint
Qemu
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu