Detections
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CentOS 6 : unbound (RHSA-2020:2640)

high Nessus Plugin ID 208513

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Synopsis

The remote CentOS Linux host is missing one or more security updates.

Description

The remote CentOS Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2640 advisory.

 - Unbound before 1.10.1 has Insufficient Control of Network Message Volume, aka an NXNSAttack issue. This is triggered by random subdomains in the NSDNAME in NS records. (CVE-2020-12662)

 - Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.
 (CVE-2020-12663)

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://access.redhat.com/errata/RHSA-2020:2640

Plugin Details

Severity: High

ID: 208513

File Name: centos_RHSA-2020-2640.nasl

Version: 1.1

Type: local

Agent: unix

Published: 10/9/2024

Updated: 10/9/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

Vendor

Vendor Severity: Important

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-2020-12663

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:centos:centos:unbound-libs, p-cpe:/a:centos:centos:unbound, cpe:/o:centos:centos:6, p-cpe:/a:centos:centos:unbound-devel, p-cpe:/a:centos:centos:unbound-python

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/22/2020

Vulnerability Publication Date: 5/19/2020

Reference Information

CVE: CVE-2020-12662, CVE-2020-12663

RHSA: 2020:2640