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CVE-2023-5088

Qemu: improper ide controller reset can lead to mbr overwrite

Published: Nov 3, 2023Updated: Nov 3, 2025 Sources: CVE List NVD BDUCWE-821
NVD MITRE
6.4CVSSMEDIUM
EPSS Score
0.2%
Top 86.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:HPR:HUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-821CWE-662

Affected Products

qemuqemu
On-prem
Cloud & SaaS / virtualization
enterprise linuxredhat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 8Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 9Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 6Red Hat
On-premOS
Operating Systems / linux-distro
qemuoss-projectUSCloud & SaaS
redhatcommercialUSOperating Systemsaka red hat
red hatcommercialUSOperating Systemsaka red hat
and 8 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://access.redhat.com/errata/RHSA-2024:2135
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:2962
access.redhat.com
https://access.redhat.com/security/cve/CVE-2023-5088
access.redhat.com
and 15 more references View all →

Timeline

Published
Nov 3, 2023
Last Updated
Nov 3, 2025

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