Key Management Errors Affecting heimdal package, versions <1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm1


low

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High

    Threat Intelligence

    EPSS 0.19% (56th percentile)
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NVD
7.4 high

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  • Snyk ID SNYK-UBUNTU1604-HEIMDAL-346652
  • published 15 May 2019
  • disclosed 15 May 2019

How to fix?

Upgrade Ubuntu:16.04 heimdal to version 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream heimdal package and not the heimdal package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

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.