1.9 Low
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
26.0%
Xen 3.1 through 4.x, when running 64-bit hosts on Intel CPUs, does not clear the NT flag when using an IRET after a SYSENTER instruction, which allows PV guest users to cause a denial of service (hypervisor crash) by triggering a #GP fault, which is not properly handled by another IRET instruction.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | xen | < 4.1.4-3 | xen_4.1.4-3_all.deb |
Debian | 11 | all | xen | < 4.1.4-3 | xen_4.1.4-3_all.deb |
Debian | 10 | all | xen | < 4.1.4-3 | xen_4.1.4-3_all.deb |
Debian | 999 | all | xen | < 4.1.4-3 | xen_4.1.4-3_all.deb |
Debian | 13 | all | xen | < 4.1.4-3 | xen_4.1.4-3_all.deb |