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    CVE-2019-12098

    In the client side of Heimdal before 7.6.0, failure to verify anonymous PKINIT PA-PKINIT-KX key exchange permits a man-in-the-middle attack. This issue is in krb5_init_creds_step in lib/krb5/init_creds_pw.c.

    Published:May 15, 2019
    Last Modified:Apr 15, 2026
    EPS:May 15, 2019
    EPSS Score:0.04643
    CVSS Score:7.4

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Heimdal Project
    Product
    Heimdal
    Vendor
    Opensuse
    Product
    Backports Sle
    Vendor
    Opensuse
    Product
    Leap

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-295 Improper Certificate Validation

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    References

    http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00002.html
    http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00003.html
    http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.html
    http://www.h5l.org/pipermail/heimdal-announce/2019-May/000009.html
    https://github.com/heimdal/heimdal/commit/2f7f3d9960aa6ea21358bdf3687cee5149aa35cf
    https://github.com/heimdal/heimdal/compare/3e58559...bbafe72
    https://github.com/heimdal/heimdal/releases/tag/heimdal-7.6.0
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GIXEDVVMPD6ZAJSMI2EZ7FNEIVNWE5PD/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SLXXIF4LOQEAEDAF4UGP2AO6WDNTDFUB/
    https://seclists.org/bugtraq/2019/Jun/1
    https://www.debian.org/security/2019/dsa-4455
    http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00002.html
    http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00003.html
    http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.html
    http://www.h5l.org/pipermail/heimdal-announce/2019-May/000009.html
    https://github.com/heimdal/heimdal/commit/2f7f3d9960aa6ea21358bdf3687cee5149aa35cf
    https://github.com/heimdal/heimdal/compare/3e58559...bbafe72
    https://github.com/heimdal/heimdal/releases/tag/heimdal-7.6.0
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GIXEDVVMPD6ZAJSMI2EZ7FNEIVNWE5PD/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SLXXIF4LOQEAEDAF4UGP2AO6WDNTDFUB/
    https://seclists.org/bugtraq/2019/Jun/1
    https://www.debian.org/security/2019/dsa-4455

    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