Detections
Analytics

Amazon Linux 2 : linuxptp (ALAS-2021-1697)

high Nessus Plugin ID 152233

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Synopsis

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

Description

The version of linuxptp installed on the remote host is prior to 2.0-2. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2021-1697 advisory.

 - A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This flaw affects linuxptp versions before 3.1.1, before 2.0.1, before 1.9.3, before 1.8.1, before 1.7.1, before 1.6.1 and before 1.5.1. (CVE-2021-3570)

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 linuxptp' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2021-1697.html

https://access.redhat.com/security/cve/CVE-2021-3570

Plugin Details

Severity: High

ID: 152233

File Name: al2_ALAS-2021-1697.nasl

Version: 1.2

Type: local

Agent: unix

Published: 8/6/2021

Updated: 8/6/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 8

Temporal Score: 5.9

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

CVSS Score Source: CVE-2021-3570

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:linuxptp-debuginfo, p-cpe:/a:amazon:linux:linuxptp

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/4/2021

Vulnerability Publication Date: 7/6/2021

Reference Information

CVE: CVE-2021-3570

ALAS: 2021-1697