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Amazon Linux 2 : net-snmp (ALAS-2020-1454)

high Nessus Plugin ID 138620

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Synopsis

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

Description

The version of net-snmp installed on the remote host is prior to 5.7.2-48. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2020-1454 advisory.

 snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service. (CVE-2018-18066)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update net-snmp' to update your system.

See Also

https://access.redhat.com/security/cve/CVE-2018-18066

https://alas.aws.amazon.com/AL2/ALAS-2020-1454.html

Plugin Details

Severity: High

ID: 138620

File Name: al2_ALAS-2020-1454.nasl

Version: 1.4

Type: local

Agent: unix

Published: 7/20/2020

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2018-18066

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:net-snmp-python, p-cpe:/a:amazon:linux:net-snmp-libs, p-cpe:/a:amazon:linux:net-snmp-sysvinit, p-cpe:/a:amazon:linux:net-snmp-utils, p-cpe:/a:amazon:linux:net-snmp-devel, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:net-snmp-agent-libs, p-cpe:/a:amazon:linux:net-snmp-debuginfo, p-cpe:/a:amazon:linux:net-snmp-gui, p-cpe:/a:amazon:linux:net-snmp-perl, p-cpe:/a:amazon:linux:net-snmp

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/17/2020

Vulnerability Publication Date: 10/8/2018

Reference Information

CVE: CVE-2018-18066

ALAS: 2020-1454