Critical severity10.0NVD Advisory· Published Jul 5, 2017· Updated May 13, 2026

CVE-2017-10921

Description

The grant-table feature in Xen through 4.8.x does not ensure sufficient type counts for a GNTMAP_device_map and GNTMAP_host_map mapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 2.

Affected products

Xen/Xen
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
Range: <=4.8.1

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

xenbits.xen.org/xsa/advisory-224.htmlnvdPatchVendor Advisory
www.debian.org/security/2017/dsa-3969nvd
www.securitytracker.com/id/1038734nvd
security.gentoo.org/glsa/201708-03nvd
security.gentoo.org/glsa/201710-17nvd

News mentions

No linked articles in our index yet.

cvss	0.650
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000