UBUNTU-CVE-2021-33054

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    UBUNTU-CVE-2021-33054

    Published: 4 Jun 2021Last Modified: 6 Jul 2026
    Upstream:
    CVE-2021-33054
    Aliases:
    USN-8504-1

    Summary:

    Details: SOGo 2.x before 2.4.1 and 3.x through 5.x before 5.1.1 does not validate the signatures of any SAML assertions it receives. Any actor with network access to the deployment could impersonate users when SAML is the authentication method. (Only versions after 2.0.5a are affected.)

    References: https://ubuntu.com/security/CVE-2021-33054, https://www.sogo.nu/news/2021/saml-vulnerability.html, https://blogs.akamai.com/2021/06/saml-implementation-vulnerability-impacting-some-akamai-services.html, https://blogs.akamai.com/2021/06/akamai-eaa-impersonation-vulnerability---a-deep-dive.html, https://blogs.akamai.com/2021/06/sogo-and-packetfence-impacted-by-saml-implementation-vulnerabilities.html, https://github.com/inverse-inc/sogo/blob/master/CHANGELOG.md, https://www.sogo.nu/news.html, https://www.cve.org/CVERecord?id=CVE-2021-33054, https://ubuntu.com/security/notices/USN-8504-1

    Affected packages

    Package

    Name: sogo

    Purl: pkg:deb/ubuntu/sogo?arch=source&distro=esm-apps-legacy%2Fxenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.2.17a-1.1ubuntu0.1~esm1

    Affected versions

    2.2.17a-1
    2.2.17a-1.1
    2.2.17a-1.1build1

    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-2021-33054 | CVE-DB