4.9 Medium
CVSS2
Access Vector
Access Complexity
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.001 Low
EPSS
Percentile
26.7%
GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant
table operation version, which allows local guest domains to cause a denial
of service (NULL pointer dereference) via a hypercall without a
GNTTABOP_setup_table or GNTTABOP_set_version.