Loop with Unreachable Exit Condition ('Infinite Loop') Affecting openldap package, versions <2.4.42+dfsg-2ubuntu3.12


medium

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 7.96% (95th 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-1064823
  • published 26 Jan 2021
  • disclosed 26 Jan 2021

How to fix?

Upgrade Ubuntu:16.04 openldap to version 2.4.42+dfsg-2ubuntu3.12 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.

A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop Cancel operation, resulting in denial of service.