USN-5250-2

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    USN-5250-2

    Published: 24 Jan 2022Last Modified: 29 Jun 2026

    Summary: strongswan vulnerability

    Details: USN-5250-1 fixed a vulnerability in strongSwan. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Zhuowei Zhang discovered that stringSwan incorrectly handled EAP authentication. A remote attacker could use this issue to cause strongSwan to crash, resulting in a denial of service, or possibly bypass client and server authentication.

    References: https://ubuntu.com/security/notices/USN-5250-2, https://ubuntu.com/security/CVE-2021-45079

    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+esm2

    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-5250-2 | CVE-DB