UBUNTU-CVE-2017-16853

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    UBUNTU-CVE-2017-16853

    Published: 16 Nov 2017Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-16853

    Summary:

    Details: The DynamicMetadataProvider class in saml/saml2/metadata/impl/DynamicMetadataProvider.cpp in OpenSAML-C in OpenSAML before 2.6.1 fails to properly configure itself with the MetadataFilter plugins and does not perform critical security checks such as signature verification, enforcement of validity periods, and other checks specific to deployments, aka CPPOST-105.

    References: https://ubuntu.com/security/CVE-2017-16853, https://git.shibboleth.net/view/?p=cpp-opensaml.git;a=commit;h=6182b0acf2df670e75423c2ed7afe6950ef11c9d, https://shibboleth.net/community/advisories/secadv_20171115.txt, https://bugs.debian.org/881856, https://www.cve.org/CVERecord?id=CVE-2017-16853

    Affected packages

    Package

    Name: opensaml2

    Purl: pkg:deb/ubuntu/[email protected]+deb8u2build0.14.04.1?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.5.3-2+deb8u2build0.14.04.1

    Affected versions

    2.5.3-2

    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