USN-5231-1

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    USN-5231-1

    Published: 18 Jul 2022Last Modified: 25 Jun 2026

    Summary: 389-ds-base vulnerabilities

    Details: It was discovered that 389 Directory Server presented to users, during authentication, an error message which could be used to discover if a certain LDAP DN existed or not. A remote unauthenticated attacker could possibly use this to check the existence of an entry in a LDAP database and expose sensitive information. This issue affected only Ubuntu 20.04 ESM. (CVE-2020-35518) It was discovered that 389 Directory Server was incorrectly validating data used to access memory addresses. An authenticated attacker using a Syncrepl client could use this issue with a specially crafted query to cause 389 Directory Server to crash, resulting in a denial of service. (CVE-2021-3514)

    References: https://ubuntu.com/security/notices/USN-5231-1, https://ubuntu.com/security/CVE-2020-35518, https://ubuntu.com/security/CVE-2021-3514

    Affected packages

    Package

    Name: 389-ds-base

    Purl: pkg:deb/ubuntu/389-ds-base?arch=source&distro=esm-apps%2Fxenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.3.4.9-1ubuntu0.1~esm1

    Affected versions

    1.3.3.12-1build1
    1.3.3.13-1
    1.3.4.5-2
    1.3.4.8-1
    1.3.4.8-3
    1.3.4.8-3ubuntu1
    1.3.4.8-4
    1.3.4.9-1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    USN-5231-1 | CVE-DB