CVEvulnerability

CVE-2023-5088

7.0 HIGH Published 2023-11-03 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-11-03
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.4 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-662, CWE-821

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.

Affected configurations

• qemu qemu (< 8.2.0) • redhat enterprise linux 8.0 • redhat enterprise linux 9.0

Related

Weakness · CWE (2)

  • CWE-662 Improper Synchronization weakness
  • CWE-821 Incorrect Synchronization weakness

References