<p>Upgrade <code>Ubuntu:16.04</code> <code>heimdal</code> to version 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 or higher.</p>

NULL Pointer Dereference Affecting heimdal package, versions <1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3

Snyk CVSS

Attack Complexity Low

Availability High

Threat Intelligence

EPSS 0.09% (37^th percentile)

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Snyk ID SNYK-UBUNTU1604-HEIMDAL-3120976
published 16 Nov 2022
disclosed 26 Dec 2022

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Introduced: 16 Nov 2022

CVE-2021-44758 Open this link in a new tab CWE-476 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+esm3 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 before 7.7.1 allows attackers to cause a NULL pointer dereference in a SPNEGO acceptor via a preferred_mech_type of GSS_C_NO_OID and a nonzero initial_response value to send_accept.