| ID |
CVE-2021-29657
|
| Sažetak |
arch/x86/kvm/svm/nested.c in the Linux kernel before 5.11.12 has a use-after-free in which an AMD KVM guest can bypass access control on host OS MSRs when there are nested guests, aka CID-a58d9166a756. This occurs because of a TOCTOU race condition associated with a VMCB12 double fetch in nested_svm_vmrun. |
| Reference |
|
| CVSS |
| Base: | 6.9 |
| Impact: | 10.0 |
| Exploitability: | 3.4 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| LOCAL |
MEDIUM |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| COMPLETE |
COMPLETE |
COMPLETE |
|
| CVSS vektor |
AV:L/AC:M/Au:N/C:C/I:C/A:C |
| Zadnje važnije ažuriranje |
19-05-2023 - 16:51 |
| Objavljeno |
22-07-2021 - 17:15 |
