CVE-2018-5244

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Summary

CVECVE-2018-5244
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-01-05 18:29:00 UTC
Updated2018-10-31 10:32:00 UTC
DescriptionIn 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.

Risk And Classification

Problem Types: CWE-119

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Xen Xen All All All All
Operating System Xen Xen All All All All

References

ReferenceSourceLinkTags
Malformed Request BID www.securityfocus.com Third Party Advisory, VDB Entry
XSA-253 - Xen Security Advisories CONFIRM xenbits.xen.org Issue Tracking, Mitigation, Vendor Advisory
Xen: Multiple vulnerabilities (GLSA 201810-06) — Gentoo security GENTOO security.gentoo.org
Xen MSR Emulation Memory Leak Lets Local Users on a Guest System Cause Denial of Service Conditions on the Host System - SecurityTracker SECTRACK www.securitytracker.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 502037 Alpine Linux Security Update for xen
  • 504523 Alpine Linux Security Update for xen
  • 710221 Gentoo Linux Xen Multiple Vulnerabilities (GLSA 201810-06)
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