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Off-by-one Error Affecting heimdal package, versions <1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2

medium

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 0.3% (70th percentile)
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NVD
7.5 high

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  • Snyk ID SNYK-UBUNTU1604-HEIMDAL-3124862
  • published 18 Nov 2022
  • disclosed 15 Nov 2022
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Introduced: 15 Nov 2022

CVE-2022-41916 Open this link in a new tab
CWE-193 Open this link in a new tab

How to fix?

Upgrade Ubuntu:16.04 heimdal to version 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2 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.

Heimdal is an implementation of ASN.1/DER, PKIX, and Kerberos. Versions prior to 7.7.1 are vulnerable to a denial of service vulnerability in Heimdal's PKI certificate validation library, affecting the KDC (via PKINIT) and kinit (via PKINIT), as well as any third-party applications using Heimdal's libhx509. Users should upgrade to Heimdal 7.7.1 or 7.8. There are no known workarounds for this issue.