| ID |
CVE-2022-23034
|
| Sažetak |
A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a mapping can be requested in two steps. The reference count for such a mapping would then mistakenly be decremented twice. Underflow of the counters gets detected, resulting in the triggering of a hypervisor bug check. |
| Reference |
|
| CVSS |
| Base: | 2.1 |
| Impact: | 2.9 |
| Exploitability: | 3.9 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| LOCAL |
LOW |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| NONE |
NONE |
PARTIAL |
|
| CVSS vektor |
AV:L/AC:L/Au:N/C:N/I:N/A:P |
| Zadnje važnije ažuriranje |
07-11-2023 - 03:44 |
| Objavljeno |
25-01-2022 - 14:15 |
