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


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
5.22% (94th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Improper Input Validation vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-DEBIANUNSTABLE-KRB5-396245
  • published27 Mar 2009
  • disclosed27 Mar 2009

Introduced: 27 Mar 2009

CVE-2009-0845  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Debian:unstable 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:unstable 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