Amazon Linux 2 : 389-ds-base (ALAS-2018-1094)

High Nessus Plugin ID 118401

Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

A vulnerability was discovered in 389-ds-base. The lock controlling the error log was not correctly used when re-opening the log file in log__error_emergency(). An attacker could send a flood of modifications to a very large DN, which would cause slapd to crash.(CVE-2018-14624)

A race condition was found in the way 389-ds-base handles persistent search, resulting in a crash if the server is under load. An anonymous attacker could use this flaw to trigger a denial of service.(CVE-2018-10850)

A double-free of a password policy structure was found in the way slapd was handling certain errors during persistent search. A unauthenticated attacker could use this flaw to crash Directory Server.(CVE-2018-14638)

A flaw was found in the 389 Directory Server that allows users to cause a crash in the LDAP server using ldapsearch with server side sort.(CVE-2018-10935)

Solution

Run 'yum update 389-ds-base' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2018-1094.html

Plugin Details

Severity: High

ID: 118401

File Name: al2_ALAS-2018-1094.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2018/10/26

Modified: 2018/11/15

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.1

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

CVSS v3.0

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:389-ds-base, p-cpe:/a:amazon:linux:389-ds-base-debuginfo, p-cpe:/a:amazon:linux:389-ds-base-devel, p-cpe:/a:amazon:linux:389-ds-base-libs, p-cpe:/a:amazon:linux:389-ds-base-snmp, cpe:/o:amazon:linux:2

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Patch Publication Date: 2018/10/25

Reference Information

CVE: CVE-2018-10850, CVE-2018-10935, CVE-2018-14624, CVE-2018-14638

ALAS: 2018-1094