Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | < 8.2.0 |
| Redhat | Enterprise Linux | 8.0 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2024:2135
- https://access.redhat.com/errata/RHSA-2024:2962
- https://access.redhat.com/security/cve/CVE-2023-5088Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2247283Issue TrackingPatch
- https://lore.kernel.org/all/[email protected]/T/Mailing ListPatch
- https://access.redhat.com/errata/RHSA-2024:2135
- https://access.redhat.com/errata/RHSA-2024:2962
- https://access.redhat.com/security/cve/CVE-2023-5088Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2247283Issue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html
- https://lists.debian.org/debian-lts-announce/2025/04/msg00042.html
- https://lore.kernel.org/all/[email protected]/T/Mailing ListPatch
- https://security.netapp.com/advisory/ntap-20231208-0005/
FAQ
What is CVE-2023-5088?
CVE-2023-5088 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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...
How severe is CVE-2023-5088?
CVE-2023-5088 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-5088?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Redhat Enterprise Linux.