5.6 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
0.0004 Low
EPSS
Percentile
9.2%
A flaw was found in KVM AMD Secure Encrypted Virtualization (SEV) in the Linux kernel. A KVM guest using SEV-ES or SEV-SNP with multiple vCPUs can trigger a double fetch race condition vulnerability and invoke the VMGEXIT
handler recursively. If an attacker manages to call the handler multiple times, they can trigger a stack overflow and cause a denial of service or potentially guest-to-host escape in kernel configurations without stack guard pages (CONFIG_VMAP_STACK
).
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | linux | < 6.1.52-1 | linux_6.1.52-1_all.deb |
Debian | 11 | all | linux | < 5.10.218-1 | linux_5.10.218-1_all.deb |
Debian | 999 | all | linux | < 6.4.11-1 | linux_6.4.11-1_all.deb |
Debian | 13 | all | linux | < 6.4.11-1 | linux_6.4.11-1_all.deb |