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EulerOS 2.0 SP3 : python-jinja2 (EulerOS-SA-2021-2609)

medium Nessus Plugin ID 154360

Synopsis

The remote EulerOS host is missing a security update.

Description

According to the versions of the python-jinja2 package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

 - This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the `_punctuation_re regex` operator and its use of multiple wildcards. The last wildcard is the most exploitable as it searches for trailing punctuation. This issue can be mitigated by Markdown to format user content instead of the urlize filter, or by implementing request timeouts and limiting process memory. (CVE-2020-28493)

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-jinja2 packages.

See Also

http://www.nessus.org/u?2492ff80

Plugin Details

Severity: Medium

ID: 154360

File Name: EulerOS_SA-2021-2609.nasl

Version: 1.3

Type: local

Published: 10/25/2021

Updated: 11/28/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2020-28493

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:python-jinja2, 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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/25/2021

Vulnerability Publication Date: 2/1/2021

Reference Information

CVE: CVE-2020-28493