Improper Input Validation Affecting krb5-server package, versions <0:1.8.2-3.el6_0.1


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
81.3% (99th percentile)

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  • Snyk IDSNYK-RHEL6-KRB5SERVER-1416032
  • published26 Jul 2021
  • disclosed5 Oct 2010

Introduced: 5 Oct 2010

CVE-2010-1322  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade RHEL:6 krb5-server to version 0:1.8.2-3.el6_0.1 or higher.
This issue was patched in RHSA-2010:0863.

NVD Description

Note: Versions mentioned in the description apply only to the upstream krb5-server package and not the krb5-server package as distributed by RHEL. See How to fix? for RHEL:6 relevant fixed versions and status.

The merge_authdata function in kdc_authdata.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x before 1.8.4 does not properly manage an index into an authorization-data list, which allows remote attackers to cause a denial of service (daemon crash), or possibly obtain sensitive information, spoof authorization, or execute arbitrary code, via a TGS request that triggers an uninitialized pointer dereference, as demonstrated by a request from a Windows Active Directory client.

CVSS Scores

version 3.1