UBUNTU-CVE-2023-41913

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    UBUNTU-CVE-2023-41913

    Published: 20 Nov 2023Last Modified: 4 Feb 2026
    Upstream:
    CVE-2023-41913

    Summary:

    Details: strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The earliest affected version is 5.3.0. An attack can occur via a crafted IKE_SA_INIT message.

    References: https://ubuntu.com/security/CVE-2023-41913, https://www.strongswan.org/blog/2023/11/20/strongswan-vulnerability-(cve-2023-41913).html, https://ubuntu.com/security/notices/USN-6488-1, https://ubuntu.com/security/notices/USN-6488-2, https://www.cve.org/CVERecord?id=CVE-2023-41913

    Affected packages

    Package

    Name: strongswan

    Purl: pkg:deb/ubuntu/[email protected]+esm4?arch=source&distro=esm-infra/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.3.5-1ubuntu3.8+esm4

    Affected versions

    5.1.2-0ubuntu6
    5.1.2-0ubuntu7
    5.1.2-0ubuntu8

    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-2023-41913 | CVE-DB