Qemu: improper ide controller reset can lead to mbr overwrite
CVE-2023-5088

6.4MEDIUM

Key Information:

Vendor
Red Hat
Status
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Vendor
CVE Published:
3 November 2023

Summary

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 Version(s)

Red Hat Enterprise Linux 8 8100020240314161907.e155f54d

Red Hat Enterprise Linux 8 8100020240314161907.e155f54d

Red Hat Enterprise Linux 9 17:8.2.0-11.el9_4

References

https://access.redhat.com/errata/RHSA-2024:2135
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2962
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-5088
vdb-entryx_refsource_REDHAT

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.