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CVE-2023-5088

Public on 2023-11-02
Modified on 2024-01-30
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.

Severity
Medium
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CVSS v3 Base Score
6.4
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core qemu 2023-11-09 19:19 ALAS2-2023-2336

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv3 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H