UBUNTU-CVE-2021-3905

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    UBUNTU-CVE-2021-3905

    Published: 8 Nov 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-3905
    Aliases:
    USN-5242-1

    Summary:

    Details: A memory leak was found in Open vSwitch (OVS) during userspace IP fragmentation processing. An attacker could use this flaw to potentially exhaust available memory by keeping sending packet fragments.

    References: https://ubuntu.com/security/CVE-2021-3905, https://ubuntu.com/security/notices/USN-5242-1, https://www.cve.org/CVERecord?id=CVE-2021-3905

    Affected packages

    Package

    Name: openvswitch

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.9.8-0ubuntu0.18.04.2

    Affected versions

    2.8.0-0ubuntu2
    2.8.1-0ubuntu2
    2.8.1-0ubuntu3

    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-2021-3905 | CVE-DB