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.
| Version | Score | Severity | Vector String |
|---|---|---|---|
| 3.1 | 5.6 | Medium | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H |
| Product | Vendor | Version |
|---|---|---|
| Fedora | Fedora | < 8c1efe3f74a7864461b0dff281c5562154b4aa8e |
| Red Hat Enterprise Linux 6 | Red Hat | <= 6.15.* |
| Red Hat Enterprise Linux 7 | Red Hat | <= 6.16.* |
| Red Hat Enterprise Linux 7 | Red Hat | 12.2.1.3.0 |
| Red Hat Enterprise Linux 7 | Red Hat | <= * |
| Red Hat Enterprise Linux 8 Advanced Virtualization | Red Hat | 14.1.1.0.0 |
| Red Hat Enterprise Linux 8 | Red Hat | 12.2.1.4.0 |
| qemu | n/a | <= 6.12.* |