UBUNTU-CVE-2023-1668

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    UBUNTU-CVE-2023-1668

    Published: 10 Apr 2023Last Modified: 4 Feb 2026
    Upstream:
    CVE-2023-1668
    Aliases:
    USN-6068-1

    Summary:

    Details: A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.

    References: https://ubuntu.com/security/CVE-2023-1668, https://www.openwall.com/lists/oss-security/2023/04/06/1, https://ubuntu.com/security/notices/USN-6068-1, https://www.cve.org/CVERecord?id=CVE-2023-1668

    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-2023-1668 | CVE-DB