UBUNTU-CVE-2020-14394

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    UBUNTU-CVE-2020-14394

    Published: 17 Aug 2022Last Modified: 9 Jun 2026
    Upstream:
    CVE-2020-14394

    Summary:

    Details: An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.

    References: https://ubuntu.com/security/CVE-2020-14394, https://ubuntu.com/security/notices/USN-6567-1, https://www.cve.org/CVERecord?id=CVE-2020-14394, https://ubuntu.com/security/notices/USN-8412-1

    Affected packages

    Package

    Name: qemu

    Purl: pkg:deb/ubuntu/qemu?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.0.0+dfsg-2ubuntu1.47+esm6

    Affected versions

    1.5.0+dfsg-3ubuntu5
    1.5.0+dfsg-3ubuntu6

    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
    UBUNTU-CVE-2020-14394 | CVE-DB