| ID |
CVE-2021-4093
|
| Sažetak |
A flaw was found in the KVM's AMD code for supporting the Secure Encrypted Virtualization-Encrypted State (SEV-ES). A KVM guest using SEV-ES can trigger out-of-bounds reads and writes in the host kernel via a malicious VMGEXIT for a string I/O instruction (for example, outs or ins) using the exit reason SVM_EXIT_IOIO. This issue results in a crash of the entire system or a potential guest-to-host escape scenario. |
| Reference |
|
| CVSS |
| Base: | 7.2 |
| Impact: | 10.0 |
| Exploitability: | 3.9 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| LOCAL |
LOW |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| COMPLETE |
COMPLETE |
COMPLETE |
|
| CVSS vektor |
AV:L/AC:L/Au:N/C:C/I:C/A:C |
| Zadnje važnije ažuriranje |
07-11-2023 - 03:40 |
| Objavljeno |
18-02-2022 - 18:15 |
