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CVE-2023-5088

Date: November 3, 2023

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.

Language: C

Severity Score

Related Resources (9)

https://access.redhat.com/security/cve/CVE-2023-5088
https://security.netapp.com/advisory/ntap-20231208-0005/
https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html
https://lore.kernel.org/all/20230921160712.99521-1-simon.rowe@nutanix.com/T/
https://access.redhat.com/errata/RHSA-2024:2135
https://nvd.nist.gov/vuln/detail/CVE-2023-5088
https://bugzilla.redhat.com/show_bug.cgi?id=2247283
https://security-tracker.debian.org/tracker/CVE-2023-5088
https://www.mend.io/vulnerability-database/CVE-2023-5088

Severity Score

Weakness Type (CWE)

Incorrect Synchronization

CWE-821

Improper Synchronization

CWE-662

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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