Vulnerability-Lookup

CNVD-2021-101681

Vulnerability from cnvd - Published: 2021-12-23

Title

NumPy存在未明漏洞

Description

NumPy是一个Python科学计算包。该产品支持大量的维度数组与矩阵计算，同时针对数据运算提供大量的数学函数库。 NumPy 1.19存在安全漏洞，该漏洞源于numpy存在空指针解引用漏洞。在软件中的PyArray_DescrNew函数中，由于缺少返回值验证，导致了空指针解引用漏洞、攻击者可利用该漏洞通过重复创建排序数组来进行DoS攻击。

Severity

中

Formal description

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： https://github.com/numpy/numpy

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-41495

Impacted products

Name
NumPy NumPy <=1.19.0

Show details on source website

JSON

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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-101681",
  "openTime": "2021-12-23",
  "products": {
    "product": "NumPy NumPy \u003c=1.19.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-41495",
  "serverity": "\u4e2d",
  "submitTime": "2021-12-21",
  "title": "NumPy\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}

CVE-2021-41495 (GCVE-0-2021-41495)

Vulnerability from cvelistv5 – Published: 2021-12-17 19:25 – Updated: 2024-08-04 03:15 Disputed

Summary

Null Pointer Dereference vulnerability exists in numpy.sort in NumPy &lt and 1.19 in the PyArray_DescrNew function due to missing return-value validation, which allows attackers to conduct DoS attacks by repetitively creating sort arrays. NOTE: While correct that validation is missing, an error can only occur due to an exhaustion of memory. If the user can exhaust memory, they are already privileged. Further, it should be practically impossible to construct an attack which can target the memory exhaustion to occur at exactly this place

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

2 references

URL	Tags
https://github.com/numpy/numpy/issues/19038	x_refsource_MISC
https://www.oracle.com/security-alerts/cpujul2022.html

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CNVD-2021-101681

CVE-2021-41495 (GCVE-0-2021-41495)

Tags

Sightings

Nomenclature

Related by attack behaviour