Homepage
About Snyk

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)

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 ID SNYK-DEBIAN10-KRB5-396244
  • published 27 Mar 2009
  • disclosed 27 Mar 2009
Report a new vulnerability Found a mistake?

Introduced: 27 Mar 2009

CVE-2009-0845 Open this link in a new tab
CWE-20 Open this link in a new tab

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
Expand this section

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