In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times.
Advisories
Source ID Title
EUVD EUVD EUVD-2018-17026 In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T05:33:43.746Z

Reserved: 2018-01-05T00:00:00

Link: CVE-2018-5244

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-01-05T18:29:00.247

Modified: 2024-11-21T04:08:24.847

Link: CVE-2018-5244

cve-icon Redhat

Severity : Moderate

Publid Date: 2018-01-04T00:00:00Z

Links: CVE-2018-5244 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses