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Amazon Linux 2 : libwsman-devel (ALAS-2020-1540)

high Nessus Plugin ID 141970

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Synopsis

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

Description

The version of tested product installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2020-1540 advisory.

 - Openwsman, versions up to and including 2.6.9, are vulnerable to infinite loop in process_connection() when parsing specially crafted HTTP requests. A remote, unauthenticated attacker can exploit this vulnerability by sending malicious HTTP request to cause denial of service to openwsman server.
 (CVE-2019-3833)

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 openwsman' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2020-1540.html

https://access.redhat.com/security/cve/CVE-2019-3833

Plugin Details

Severity: High

ID: 141970

File Name: al2_ALAS-2020-1540.nasl

Version: 1.2

Type: local

Agent: unix

Published: 10/28/2020

Updated: 10/28/2020

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-2019-3833

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:libwsman-devel, p-cpe:/a:amazon:linux:libwsman1, p-cpe:/a:amazon:linux:openwsman-client, p-cpe:/a:amazon:linux:openwsman-debuginfo, p-cpe:/a:amazon:linux:openwsman-perl, p-cpe:/a:amazon:linux:openwsman-python, p-cpe:/a:amazon:linux:openwsman-ruby, p-cpe:/a:amazon:linux:openwsman-server, 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: 10/22/2020

Vulnerability Publication Date: 3/12/2019

Reference Information

CVE: CVE-2019-3833

BID: 107367

ALAS: 2020-1540