Improper Input Validation Affecting krb5 package, versions <1.11.3+dfsg-3+nmu1


Severity

0.0
low
0
10

    Threat Intelligence

    EPSS
    3.34% (92nd percentile)

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  • Snyk ID SNYK-DEBIAN10-KRB5-395985
  • published 20 Nov 2013
  • disclosed 20 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.

do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.11 before 1.11.4, when a single-component realm name is used, allows remote authenticated users to cause a denial of service (daemon crash) via a TGS-REQ request that triggers an attempted cross-realm referral for a host-based service principal.

CVSS Scores

version 3.1
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Snyk

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

3.5 low
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Red Hat

3.5 low