SARA / Free Tools / CVE / CVE-2023-5088

CVE-2023-5088 — A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitr

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 di

CVSS
6.4 MEDIUM
EPSS
0.01% (top 97.60%)
CWE
CWE-821
Published
2023-11-03T13:58:50.085Z
Last modified
2026-02-25T18:18:36.359Z
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

01What is this vulnerability?

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…

02Affected products

VendorProductVersions
Red HatRed Hat Enterprise Linux 88100020240314161907.e155f54d
Red HatRed Hat Enterprise Linux 88100020240314161907.e155f54d
Red HatRed Hat Enterprise Linux 917:8.2.0-11.el9_4
Red HatRed Hat Enterprise Linux 6unspecified
Red HatRed Hat Enterprise Linux 7unspecified
Red HatRed Hat Enterprise Linux 7unspecified
Red HatRed Hat Enterprise Linux 8 Advanced Virtualizationunspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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