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EulerOS Virtualization for ARM 64 3.0.6.0 : PyYAML (EulerOS-SA-2020-1371)

critical Nessus Plugin ID 135158

Synopsis

The remote EulerOS Virtualization for ARM 64 host is missing a security update.

Description

According to the version of the PyYAML package installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerability :

 - PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342.(CVE-2019-20477)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected PyYAML package.

See Also

http://www.nessus.org/u?613c3610

Plugin Details

Severity: Critical

ID: 135158

File Name: EulerOS_SA-2020-1371.nasl

Version: 1.5

Type: local

Published: 4/2/2020

Updated: 3/19/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2019-20477

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:python2-pyyaml, cpe:/o:huawei:euleros:uvp:3.0.6.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/2/2020

Reference Information

CVE: CVE-2019-20477