USN-4974-1

    Dashboard / Vulnerabilities / USN-4974-1

    USN-4974-1

    Published: 2 Jun 2021Last Modified: 27 Apr 2026

    Summary: lasso vulnerability

    Details: It was discovered that Lasso did not properly verify that all assertions in a SAML response were properly signed. An attacker could possibly use this to impersonate users or otherwise bypass access controls.

    References: https://ubuntu.com/security/notices/USN-4974-1, https://ubuntu.com/security/CVE-2021-28091

    Affected packages

    Package

    Name: lasso

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.5.1-0ubuntu1.2

    Affected versions

    2.5.0-5build4
    2.5.0-5build5
    2.5.0-5ubuntu1
    2.5.1-0ubuntu1
    2.5.1-0ubuntu1.1

    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-4974-1 | CVE-DB