USN-5651-2

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    USN-5651-2

    Published: 3 Oct 2022Last Modified: 29 Jun 2026

    Summary: strongswan vulnerability

    Details: USN-5651-1 fixed a vulnerability in strongSwan. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Lahav Schlesinger discovered that strongSwan incorrectly handled certain OCSP URIs and and CRL distribution points (CDP) in certificates. A remote attacker could possibly use this issue to initiate IKE_SAs and send crafted certificates that contain URIs pointing to servers under their control, which can lead to a denial-of-service attack.

    References: https://ubuntu.com/security/notices/USN-5651-2, https://ubuntu.com/security/CVE-2022-40617

    Affected packages

    Package

    Name: strongswan

    Purl: pkg:deb/ubuntu/strongswan?arch=source&distro=trusty%2Fesm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.1.2-0ubuntu2.11+esm3

    Affected versions

    4.6.4-9

    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
    USN-5651-2 | CVE-DB