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Resource Exhaustion Affecting openldap package, versions <2.4.42+dfsg-2ubuntu3.8

medium

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 12.4% (96th percentile)
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NVD
7.5 high
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SUSE
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-UBUNTU1604-OPENLDAP-568035
  • published 28 Apr 2020
  • disclosed 28 Apr 2020
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Introduced: 28 Apr 2020

CVE-2020-12243 Open this link in a new tab
CWE-400 Open this link in a new tab

How to fix?

Upgrade Ubuntu:16.04 openldap to version 2.4.42+dfsg-2ubuntu3.8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openldap package and not the openldap package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

In filter.c in slapd in OpenLDAP before 2.4.50, LDAP search filters with nested boolean expressions can result in denial of service (daemon crash).

References