Triggerable assertion due to race condition in hot-unplug
CVE-2023-3301

5.6MEDIUM

Key Information:

Vendor
Red Hat
Status
qemu
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
13 September 2023

Summary

A flaw was found in QEMU. The async nature of hot-unplug enables a race scenario where the net device backend is cleared before the virtio-net pci frontend has been unplugged. A malicious guest could use this time window to trigger an assertion and cause a denial of service.

Affected Version(s)

qemu 8.1.0-rc0

References

https://access.redhat.com/security/cve/CVE-2023-3301
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2215784
issue-trackingx_refsource_REDHAT
https://security.netapp.com/advisory/ntap-20231020-0008/

CVSS V3.1

Score:
5.6
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database

Credit

This issue was discovered by Eugenio Perez Martin (Red Hat).
.