CVE-2019-25076

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    CVE-2019-25076

    Published: 8 Sept 2022Last Modified: 8 Jul 2026

    Summary:

    Details: The TSS (Tuple Space Search) algorithm in Open vSwitch 2.x through 2.17.2 and 3.0.0 allows remote attackers to cause a denial of service (delays of legitimate traffic) via crafted packet data that requires excessive evaluation time within the packet classification algorithm for the MegaFlow cache, aka a Tuple Space Explosion (TSE) attack.

    References: https://arxiv.org/abs/2011.09107, https://dl.acm.org/citation.cfm?doid=3359989.3365431, https://sites.google.com/view/tuple-space-explosion, https://www.youtube.com/watch?v=5cHpzVK0D28, https://www.youtube.com/watch?v=DSC3m-Bww64

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    3.0.0

    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-2019-25076 | CVE-DB