UBUNTU-CVE-2023-5366

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    UBUNTU-CVE-2023-5366

    Published: 6 Oct 2023Last Modified: 4 Feb 2026
    Upstream:
    CVE-2023-5366

    Summary:

    Details: A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.

    References: https://ubuntu.com/security/CVE-2023-5366, https://ubuntu.com/security/notices/USN-6514-1, https://mail.openvswitch.org/pipermail/ovs-announce/2024-February/000342.html, https://ubuntu.com/security/notices/USN-6690-1, https://www.cve.org/CVERecord?id=CVE-2023-5366

    Affected packages

    Package

    Name: openvswitch

    Purl: pkg:deb/ubuntu/[email protected]+esm1?arch=source&distro=esm-infra/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    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-2023-5366 | CVE-DB