Detections
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Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM : 389 Directory Server vulnerabilities (USN-5231-1)

medium Nessus Plugin ID 183133

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5231-1 advisory.

 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)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-5231-1

Plugin Details

Severity: Medium

ID: 183133

File Name: ubuntu_USN-5231-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 10/16/2023

Updated: 8/27/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2020-35518

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:389-ds-base-dev, p-cpe:/a:canonical:ubuntu_linux:389-ds-base, p-cpe:/a:canonical:ubuntu_linux:389-ds, p-cpe:/a:canonical:ubuntu_linux:cockpit-389-ds, p-cpe:/a:canonical:ubuntu_linux:python3-dirsrvtests, cpe:/o:canonical:ubuntu_linux:18.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:python3-lib389, p-cpe:/a:canonical:ubuntu_linux:389-ds-base-libs, cpe:/o:canonical:ubuntu_linux:16.04:-:esm, cpe:/o:canonical:ubuntu_linux:20.04:-:esm

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 7/18/2022

Vulnerability Publication Date: 2/26/2021

Reference Information

CVE: CVE-2020-35518, CVE-2021-3514

USN: 5231-1