UBUNTU-CVE-2023-46849

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    UBUNTU-CVE-2023-46849

    Published: 15 Nov 2023Last Modified: 4 Feb 2026
    Upstream:
    CVE-2023-46849
    Aliases:
    USN-6484-1

    Summary:

    Details: Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.

    References: https://ubuntu.com/security/CVE-2023-46849, https://community.openvpn.net/openvpn/wiki/CVE-2023-46849, https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/, https://ubuntu.com/security/notices/USN-6484-1, https://www.cve.org/CVERecord?id=CVE-2023-46849

    Affected packages

    Package

    Name: openvpn

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.4.7-1ubuntu2.20.04.4

    Affected versions

    2.4.7-1ubuntu2
    2.4.7-1ubuntu2.20.04.2
    2.4.7-1ubuntu2.20.04.3

    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-2023-46849 | CVE-DB