CVE-2018-5244

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    CVE-2018-5244

    Published: 5 Jan 2018Last Modified: 15 Mar 2026

    Summary:

    Details: 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.

    References: http://www.securitytracker.com/id/1040774, http://www.securityfocus.com/bid/102433, https://security.gentoo.org/glsa/201810-06, https://xenbits.xen.org/xsa/advisory-253.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2018-5244 | CVE-DB