UBUNTU-CVE-2020-27827

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    UBUNTU-CVE-2020-27827

    Published: 13 Jan 2021Last Modified: 17 Oct 2026
    Upstream:
    CVE-2020-27827
    Aliases:
    USN-4691-1

    Summary:

    Details: A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.

    References: https://ubuntu.com/security/CVE-2020-27827, https://mail.openvswitch.org/pipermail/ovs-announce/2021-January/000269.html, https://ubuntu.com/security/notices/USN-4691-1, https://www.cve.org/CVERecord?id=CVE-2020-27827

    Affected packages

    Package

    Name: openvswitch

    Purl: pkg:deb/ubuntu/openvswitch?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.5.9-0ubuntu0.16.04.2

    Affected versions

    2.4.0-0ubuntu4
    2.4.0-0ubuntu5

    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-2020-27827 | CVE-DB