CVE-2023-5088
HIGH
MEDIUM
Priority: 0.02
BB Relevance:
29/100
Published: 2023-11-03
Modified: 2026-11-07
First seen: 2026-11-07
Status: active
Attack Surface
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
High
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
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.
Weakness Classification (2)
Affected Software (4)
| Vendor | Product | Version |
|---|---|---|
| qemu | qemu | < 8.2.0 |
| redhat | enterprise_linux | 8.0 |
| redhat | enterprise_linux | 8.0 |
| redhat | enterprise_linux | 9.0 |
References & Advisories (8)
vendor-advisory
x_refsource_REDHAT
vendor-advisory
x_refsource_REDHAT
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT