CVE-2023-5088

MEDIUM

QEMU < 8.2.0 - Arbitrary Disk Offset Overwrite via Guest I/O Operation

Title source: llm
STIX 2.1

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.

References (8)

Core 8
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:2135
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:2962
Third Party Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2023-5088
Issue Tracking, Patch issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2247283

Scores

CVSS v3 6.4
EPSS 0.0023
EPSS Percentile 13.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-821 CWE-662
Status published
Products (3)
qemu/qemu < 8.2.0
redhat/enterprise_linux 8.0 (2 CPE variants)
redhat/enterprise_linux 9.0
Published Nov 03, 2023
Tracked Since Feb 18, 2026