Improper Input Validation Affecting kerberos package, versions [1.5,1.7)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
8.26% (95th percentile)

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  • Snyk IDSNYK-UNMANAGED-KERBEROS-3006830
  • published12 Jan 2022
  • disclosed27 Mar 2009
  • creditUnknown

Introduced: 27 Mar 2009

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

How to fix?

Upgrade kerberos to version 1.7 or higher.

Overview

Affected versions of this package are vulnerable to Improper Input Validation. 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.

CVSS Scores

version 3.1