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NULL Pointer Dereference Affecting krb5-libs package, versions <0:1.15.1-20.amzn2.0.1

Severity

 Recommended
low

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.33% (71st percentile)

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  • Snyk ID SNYK-AMZN2-KRB5LIBS-1666956
  • published 27 Sep 2021
  • disclosed 6 Mar 2018
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Introduced: 6 Mar 2018

CVE-2018-5729 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 krb5-libs to version 0:1.15.1-20.amzn2.0.1 or higher.
This issue was patched in ALAS2-2018-1129.

NVD Description

Note: Versions mentioned in the description apply only to the upstream krb5-libs package and not the krb5-libs package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

MIT krb5 1.6 or later allows an authenticated kadmin with permission to add principals to an LDAP Kerberos database to cause a denial of service (NULL pointer dereference) or bypass a DN container check by supplying tagged data that is internal to the database module.

References

CVSS Scores

version 3.1
Expand this section

NVD

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