Xen ‘xen/common/grant_table.c’ Denial of Service Vulnerability (CVE-2018-7541)

Description: An issue was discovered in Xen through 4.10.x allowing guest OS users to cause a denial of service (hypervisor crash) or gain privileges by triggering a grant-table transition from v2 to v1.

Impact: An attacker can exploit this issue to crash the host, denying service to legitimate users.

Xen 4.0 and later are vulnerable.

Mitigation: Updates are available. Please see the references or vendor advisory for more information.

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