NULL Pointer Dereference Affecting krb5 package, versions <1.11.3+dfsg-3+nmu1


Severity

low

    Threat Intelligence

    EPSS
    93.63% (100th percentile)

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  • Snyk ID SNYK-DEBIAN10-KRB5-396156
  • published 18 Nov 2013
  • disclosed 18 Nov 2013

How to fix?

Upgrade Debian:10 krb5 to version 1.11.3+dfsg-3+nmu1 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:10 relevant fixed versions and status.

The setup_server_realm function in main.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.7, when multiple realms are configured, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted request.

CVSS Scores

version 3.1
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Snyk

4.3 low
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    Low
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NVD

4.3 medium
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Red Hat

4.3 medium