Improper Input Validation Affecting krb5 package, versions <1.6.dfsg.4~beta1-13


Severity

0.0
medium
0
10

    Threat Intelligence

    EPSS
    5.22% (94th percentile)

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  • Snyk ID SNYK-DEBIAN10-KRB5-396244
  • published 27 Mar 2009
  • disclosed 27 Mar 2009

How to fix?

Upgrade Debian:10 krb5 to version 1.6.dfsg.4~beta1-13 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 spnego_gss_accept_sec_context function in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3, when SPNEGO is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via invalid ContextFlags data in the reqFlags field in a negTokenInit token.

References

CVSS Scores

version 3.1
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Snyk

5.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    Low
Expand this section

NVD

5.3 medium