UBUNTU-CVE-2018-19961

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    UBUNTU-CVE-2018-19961

    Published: 8 Dec 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-19961

    Summary:

    Details: An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because TLB flushes do not always occur after IOMMU mapping changes.

    References: https://ubuntu.com/security/CVE-2018-19961, https://xenbits.xen.org/xsa/advisory-275.txt, https://xenbits.xen.org/xsa/advisory-275.html, https://www.cve.org/CVERecord?id=CVE-2018-19961

    Affected packages

    Package

    Name: xen

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.9.0-0ubuntu3
    4.9.0-0ubuntu4
    4.9.2-0ubuntu1

    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