CVE-2023-5088
Qemu: improper ide controller reset can lead to mbr overwrite
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-821 |
| Vendor | red hat |
| Product | red hat enterprise linux 8 |
| Published | Nov 3, 2023 |
| Last Updated | Feb 25, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 8 Advanced Virtualization
All versions affected References
access.redhat.com: 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 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2247283 lore.kernel.org: https://lore.kernel.org/all/[email protected]/T/ lists.debian.org: https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html security.netapp.com: https://security.netapp.com/advisory/ntap-20231208-0005/ lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/04/msg00042.html