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EulerOS 2.0 SP3 : python-cryptography (EulerOS-SA-2021-1837)

high Nessus Plugin ID 149123

Synopsis

The remote EulerOS host is missing a security update.

Description

According to the version of the python-cryptography package installed, the EulerOS installation on the remote host is affected by the following vulnerability :

 - HKDF in cryptography before 1.5.2 returns an empty byte-string if used with a length less than algorithm.digest_size.(CVE-2016-9243)

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 python-cryptography package.

See Also

http://www.nessus.org/u?a6bfa24c

Plugin Details

Severity: High

ID: 149123

File Name: EulerOS_SA-2021-1837.nasl

Version: 1.3

Type: local

Published: 4/30/2021

Updated: 1/3/2024

Supported Sensors: 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:P/A:N

CVSS Score Source: CVE-2016-9243

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:H/A:N

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:python2-cryptography, cpe:/o:huawei:euleros:2.0

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

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Ease: No known exploits are available

Patch Publication Date: 4/30/2021

Reference Information

CVE: CVE-2016-9243