EulerOS Virtualization 3.0.2.2 : pyOpenSSL (EulerOS-SA-2023-1283)

high Nessus Plugin ID 170801

Synopsis

The remote EulerOS Virtualization host is missing multiple security updates.

Description

According to the versions of the pyOpenSSL package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

- Python Cryptographic Authority pyopenssl version prior to version 17.5.0 contains a CWE-416: Use After Free vulnerability in X509 object handling that can result in Use after free can lead to possible denial of service or remote code execution.. This attack appear to be exploitable via Depends on the calling application and if it retains a reference to the memory.. This vulnerability appears to have been fixed in 17.5.0. (CVE-2018-1000807)

- Python Cryptographic Authority pyopenssl version Before 17.5.0 contains a CWE - 401 : Failure to Release Memory Before Removing Last Reference vulnerability in PKCS #12 Store that can result in Denial of service if memory runs low or is exhausted. This attack appear to be exploitable via Depends upon calling application, however it could be as simple as initiating a TLS connection. Anything that would cause the calling application to reload certificates from a PKCS #12 store.. This vulnerability appears to have been fixed in 17.5.0. (CVE-2018-1000808)

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 pyOpenSSL packages.

See Also

http://www.nessus.org/u?31c223f5

Plugin Details

Severity: High

ID: 170801

File Name: EulerOS_SA-2023-1283.nasl

Version: 1.0

Type: local

Published: 1/30/2023

Updated: 1/30/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2018-1000807

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:python2-pyopenssl, cpe:/o:huawei:euleros:uvp:3.0.2.2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/30/2023

Vulnerability Publication Date: 10/8/2018

Reference Information

CVE: CVE-2018-1000807, CVE-2018-1000808