CVE-2023-5088
Medium
Description
A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to offset 0 instead (potentially overwriting the VM's boot code). This could be used, for example, by L2 guests with a virtual disk (vdiskL2) stored on a virtual disk of an L1 (vdiskL1) hypervisor to read and/or write data to LBA 0 of vdiskL1, potentially gaining control of L1 at its next reboot.
SeverityMedium
CVSS6.4
Exploit probability—
Product
Qemu
PublishedNov 3, 2023
First seenNov 3, 2023
Weakness typeCWE-821CWE-821
How to fix
Update
- qemu qemu8.2.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| qemu qemu | v < 8.2.0 | 8.2.0 |
| redhat enterprise_linux | 8.0, 9.0 | — |
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