CVE-2020-27827

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    CVE-2020-27827

    Published: 18 Mar 2021Last Modified: 8 Jul 2026

    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://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3T5XHPOGIPWCRRPJUE6P3HVC5PTSD5JS/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYA4AMJXCNF6UPFG36L2TPPT32C242SP/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKQWHG2SZJZSGC7PXVDAEJYBN7ESDR7D/, https://mail.openvswitch.org/pipermail/ovs-dev/2021-January/379471.html, https://security.gentoo.org/glsa/202311-16, https://us-cert.cisa.gov/ics/advisories/icsa-21-194-07, https://bugzilla.redhat.com/show_bug.cgi?id=1921438, https://cert-portal.siemens.com/productcert/pdf/ssa-941426.pdf

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -0a251e25f60cf6dc71a122495601e18288387037

    Affected versions

    1.0.7
    1.0.6
    1.0.5
    1.0.4
    1.0.3
    1.0.2
    1.0.1
    1.0.0

    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-2020-27827 | CVE-DB