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Amazon Linux 2 : unbound (ALAS-2020-1463)

high Nessus Plugin ID 138629

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Synopsis

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

Description

An incomplete fix for CVE-2020-12662 was shipped for Unbound in Red Hat Enterprise Linux 7, as part of erratum RHSA-2020-2414 . Vulnerable versions of Unbound could still amplify an incoming query into a large number of queries directed to a target, even with a lower amplification ratio compared to versions of Unbound that shipped before the mentioned erratum. This issue is about the incomplete fix for CVE-2020-12662 , and it does not affect upstream versions of Unbound. (CVE-2020-10772)

Solution

Run 'yum update unbound' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2020-1463.html

Plugin Details

Severity: High

ID: 138629

File Name: al2_ALAS-2020-1463.nasl

Version: 1.2

Type: local

Agent: unix

Published: 7/20/2020

Updated: 1/26/2022

Supported Sensors: Frictionless Assessment AWS, 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:N/I:N/A:P

CVSS Score Source: CVE-2020-10772

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:unbound, p-cpe:/a:amazon:linux:unbound-debuginfo, p-cpe:/a:amazon:linux:unbound-devel, p-cpe:/a:amazon:linux:unbound-libs, p-cpe:/a:amazon:linux:unbound-python, cpe:/o:amazon:linux:2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/17/2020

Reference Information

CVE: CVE-2020-10772

ALAS: 2020-1463