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VULNERABILITIES

CVE-2021-41495 Details

Description

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

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/numpy/numpy/issues/19038 CVEExploitIssue TrackingThird Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html CVEThird Party Advisory
https://github.com/numpy/numpy/issues/19038 [email protected]ExploitIssue TrackingThird Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-476NULL Pointer Dereference[email protected]

Affected Products

ProductVersions
numpy numpy
<= 1.19.0

CPE

  • cpe:2.3:a:numpy:numpy:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

13 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-41495
NVD Published Date:
Dec 17, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-41495 Details - Not Deferred