CVE-2020-25710

Publication date 13 November 2020

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

A flaw was found in OpenLDAP in versions before 2.4.56. This flaw allows an attacker who sends a malicious packet processed by OpenLDAP to force a failed assertion in csnNormalize23(). The highest threat from this vulnerability is to system availability.

Status

Package Ubuntu Release Status
openldap 20.10 groovy
Fixed 2.4.53+dfsg-1ubuntu1.2
20.04 LTS focal
Fixed 2.4.49+dfsg-2ubuntu1.5
18.04 LTS bionic
Fixed 2.4.45+dfsg-1ubuntu1.8
16.04 LTS xenial
Fixed 2.4.42+dfsg-2ubuntu3.11
14.04 LTS trusty

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
openldap

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-4634-1
    • OpenLDAP vulnerabilities
    • 17 November 2020
    • USN-4634-2
    • OpenLDAP vulnerabilities
    • 23 November 2020

Other references