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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.

 - When binding against a DN during authentication, the reply from 389-ds-base will be different whether the DN exists or not. This can be used by an unauthenticated attacker to check the existence of an entry in the LDAP database. (CVE-2020-35518)

 - When using a sync_repl client in 389-ds-base, an authenticated attacker can cause a NULL pointer dereference using a specially crafted query, causing a crash. (CVE-2021-3514)

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: 1.0

Type: local

Agent: unix

Published: 10/16/2023

Updated: 10/16/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless 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: cpe:/o:canonical:ubuntu_linux:16.04:-:esm, cpe:/o:canonical:ubuntu_linux:18.04:-:esm, cpe:/o:canonical:ubuntu_linux:20.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:389-ds, p-cpe:/a:canonical:ubuntu_linux:389-ds-base, p-cpe:/a:canonical:ubuntu_linux:389-ds-base-dev, p-cpe:/a:canonical:ubuntu_linux:389-ds-base-libs, p-cpe:/a:canonical:ubuntu_linux:cockpit-389-ds, p-cpe:/a:canonical:ubuntu_linux:python3-dirsrvtests, p-cpe:/a:canonical:ubuntu_linux:python3-lib389

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