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Amazon Linux AMI : libldb (ALAS-2016-633)

high Nessus Plugin ID 87967

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Synopsis

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

Description

A denial of service flaw was found in the ldb_wildcard_compare() function of libldb. A remote attacker could send a specially crafted packet that, when processed by an application using libldb (for example the AD LDAP server in Samba), would cause that application to consume an excessive amount of memory and crash.

A memory-read flaw was found in the way the libldb library processed LDB DN records with a null byte. An authenticated, remote attacker could use this flaw to read heap-memory pages from the server.

Solution

Run 'yum update libldb' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2016-633.html

Plugin Details

Severity: High

ID: 87967

File Name: ala_ALAS-2016-633.nasl

Version: 2.6

Type: local

Agent: unix

Published: 1/19/2016

Updated: 4/18/2018

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

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

CVSS v3

Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:ldb-tools, p-cpe:/a:amazon:linux:libldb, p-cpe:/a:amazon:linux:libldb-debuginfo, p-cpe:/a:amazon:linux:libldb-devel, p-cpe:/a:amazon:linux:pyldb, p-cpe:/a:amazon:linux:pyldb-devel, cpe:/o:amazon:linux

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

Patch Publication Date: 1/18/2016

Reference Information

CVE: CVE-2015-3223, CVE-2015-5330

ALAS: 2016-633