Improper Synchronization Affecting qemu package, versions <1:7.2+dfsg-7+deb12u3


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.23% (14th percentile)

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  • Snyk IDSNYK-ECHOLATEST-QEMU-18321869
  • published27 Jul 2026
  • disclosed3 Nov 2023

Introduced: 3 Nov 2023

CVE-2023-5088  (opens in a new tab)
CWE-662  (opens in a new tab)

How to fix?

Upgrade Echo:latest qemu to version 1:7.2+dfsg-7+deb12u3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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 Base Scores

version 3.1