VDB-206575 · CVE-2020-14322 · GCVE-0-2020-14322

Moodle up to 3.5.12/3.7.6/3.8.3/3.9.0 yui_combo denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Moodle up to 3.5.12/3.7.6/3.8.3/3.9.0. It has been classified as problematic. The affected element is the function yui_combo. This manipulation causes denial of service. This vulnerability is registered as CVE-2020-14322. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Moodle up to 3.5.12/3.7.6/3.8.3/3.9.0 (Learning Management Software). It has been declared as problematic. Affected by this vulnerability is the function yui_combo. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

In Moodle before 3.9.1, 3.8.4, 3.7.7 and 3.5.13, yui_combo needed to limit the amount of files it can load to help mitigate the risk of denial of service.

The weakness was published 08/17/2022. It is possible to read the advisory at moodle.org. This vulnerability is known as CVE-2020-14322 since 06/17/2020. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 3.5.13, 3.7.7, 3.8.4 or 3.9.1 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Learning Management Software

Name

Moodle

Version

License

open-source

Website

Product: https://moodle.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Moodle 3.5.13/3.7.7/3.8.4/3.9.1

Timelineinfo

06/17/2020 🔍
08/17/2022 +791 days 🔍
08/17/2022 +0 days 🔍
09/17/2022 +31 days 🔍

Sourcesinfo

Product: moodle.org

Advisory: moodle.org
Status: Confirmed

CVE: CVE-2020-14322 (🔍)
GCVE (CVE): GCVE-0-2020-14322
GCVE (VulDB): GCVE-100-206575

Entryinfo

Created: 08/17/2022 10:23
Updated: 09/17/2022 11:08
Changes: 08/17/2022 10:23 (40), 09/17/2022 11:08 (11)
Complete: 🔍
Cache ID: 216::103