6.9 Medium
AI Score
Confidence
High
0.005 Low
EPSS
Percentile
75.8%
The grant-table feature in Xen through 4.8.x mishandles MMIO region grant references, which allows guest OS users to cause a denial of service (loss of grant trackability), aka XSA-224 bug 3.
www.debian.org/security/2017/dsa-3969
www.securitytracker.com/id/1038734
security.gentoo.org/glsa/201708-03
security.gentoo.org/glsa/201710-17
xenbits.xen.org/xsa/advisory-224.html