7.1 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
0.003 Low
EPSS
Percentile
67.9%
The do_mmu_update function in arch/x86/mm.c in Xen 3.2.x through 4.4.x does not properly manage page references, which allows remote domains to cause a denial of service by leveraging control over an HVM guest and a crafted MMU_MACHPHYS_UPDATE.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | xen | < 4.4.1-4 | xen_4.4.1-4_all.deb |
Debian | 11 | all | xen | < 4.4.1-4 | xen_4.4.1-4_all.deb |
Debian | 999 | all | xen | < 4.4.1-4 | xen_4.4.1-4_all.deb |
Debian | 13 | all | xen | < 4.4.1-4 | xen_4.4.1-4_all.deb |