NULL Pointer Dereference Affecting openldap-servers-sql package, versions <0:2.4.44-23.amzn2


Severity

Recommended
medium

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.13% (50th percentile)

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  • Snyk ID SNYK-AMZN2-OPENLDAPSERVERSSQL-1698991
  • published 27 Sep 2021
  • disclosed 8 Dec 2020

How to fix?

Upgrade Amazon-Linux:2 openldap-servers-sql to version 0:2.4.44-23.amzn2 or higher.
This issue was patched in ALAS2-2021-1638.

NVD Description

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

A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sending a specially crafted request, causing a Denial of Service.

CVSS Scores

version 3.1
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NVD

7.5 high
  • 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)
    High
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Red Hat

7.5 high
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SUSE

7.5 high