VDB-202821 · CVE-2021-33648 · mssa-2021-007

MindSpore Inference Shape heap-based overflow

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.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in MindSpore and classified as critical. This vulnerability affects the function Affine/Concat/MatMul/ArgMinMax/EmbeddingLookup/Gather of the component Inference Shape Handler. Performing a manipulation results in heap-based overflow. This vulnerability is identified as CVE-2021-33648. There is not any exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in MindSpore (the affected version unknown). It has been classified as critical. This affects the function Affine/Concat/MatMul/ArgMinMax/EmbeddingLookup/Gather of the component Inference Shape Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

When performing the inference shape operation of Affine, Concat, MatMul, ArgMinMax, EmbeddingLookup, and Gather operators, if the input shape size is 0, it will access data outside of bounds of shape which allocated from heap buffers.

The weakness was released 06/27/2022 as mssa-2021-007. The advisory is shared at gitee.com. This vulnerability is uniquely identified as CVE-2021-33648 since 05/28/2021. Technical details are known, but no exploit is available.

Applying a patch is able to eliminate this problem.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

MindSpore

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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-2021-007
Status: Confirmed

CVE: CVE-2021-33648 (🔍)
GCVE (CVE): GCVE-0-2021-33648
GCVE (VulDB): GCVE-100-202821

Entryinfo

Created: 06/27/2022 23:31
Updated: 07/15/2022 16:58
Changes: 06/27/2022 23:31 (39), 07/15/2022 16:58 (18)
Complete: 🔍
Cache ID: 216::103