VDB-202826 · CVE-2021-33653 · mssa-2021-002

MindSpore Derivation Shape block_shape divide by zero

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 categorized as problematic has been discovered in MindSpore. This affects an unknown function of the component Derivation Shape Handler. Such manipulation of the argument block_shape leads to divide by zero. This vulnerability is documented as CVE-2021-33653. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in MindSpore (affected version unknown). Affected by this issue is an unknown functionality of the component Derivation Shape Handler. The manipulation of the argument block_shape with an unknown input leads to a divide by zero vulnerability. Using CWE to declare the problem leads to CWE-369. The product divides a value by zero. Impacted is availability. CVE summarizes:

When performing the derivation shape operation of the SpaceToBatch operator, if there is a value of 0 in the parameter block_shape element, it will cause a division by 0 exception.

The weakness was released 06/27/2022 as mssa-2021-002. The advisory is available at gitee.com. This vulnerability is handled as CVE-2021-33653. Technical details are known, but there is no available exploit.

Applying a patch is able to eliminate this problem.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

MindSpore

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

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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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Divide by zero
CWE: CWE-369 / 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
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/28/2021 🔍
06/27/2022 +395 days 🔍
06/27/2022 +0 days 🔍
07/15/2022 +18 days 🔍

Sourcesinfo

Advisory: mssa-2021-002
Status: Confirmed

CVE: CVE-2021-33653 (🔍)
GCVE (CVE): GCVE-0-2021-33653
GCVE (VulDB): GCVE-100-202826

Entryinfo

Created: 06/27/2022 23:35
Updated: 07/15/2022 18:06
Changes: 06/27/2022 23:35 (38), 07/15/2022 17:59 (1), 07/15/2022 18:06 (18)
Complete: 🔍
Cache ID: 216::103