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NULL Pointer Dereference Affecting krb5 package, versions <1.12.1+dfsg-5

0.0
high

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 15.65% (96th percentile)
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NVD
7.5 high
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Red Hat
4.3 medium

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  • Snyk ID SNYK-DEBIAN9-KRB5-395728
  • published 14 Aug 2014
  • disclosed 14 Aug 2014
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Introduced: 14 Aug 2014

CVE-2014-4344 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade Debian:9 krb5 to version 1.12.1+dfsg-5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream krb5 package and not the krb5 package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

The acc_ctx_cont function in the SPNEGO acceptor in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty continuation token at a certain point during a SPNEGO negotiation.

References