id: PYSEC-2021-856
details: 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.
affected:
- package:
    name: numpy
    ecosystem: PyPI
    purl: pkg:pypi/numpy
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - fixed: 1.19.1
  versions:
  - 0.9.6
  - 0.9.8
  - "1.0"
  - 1.0.3
  - 1.0.4
  - 1.0b1
  - 1.0b4
  - 1.0b5
  - 1.0rc1
  - 1.0rc2
  - 1.0rc3
  - 1.1.1
  - 1.10.0
  - 1.10.1
  - 1.10.2
  - 1.10.3
  - 1.10.4
  - 1.11.0
  - 1.11.1
  - 1.11.2
  - 1.11.3
  - 1.12.0
  - 1.12.1
  - 1.13.0
  - 1.13.0rc1
  - 1.13.0rc2
  - 1.13.1
  - 1.13.3
  - 1.14.0
  - 1.14.0rc1
  - 1.14.1
  - 1.14.2
  - 1.14.3
  - 1.14.4
  - 1.14.5
  - 1.14.6
  - 1.15.0
  - 1.15.0rc1
  - 1.15.0rc2
  - 1.15.1
  - 1.15.2
  - 1.15.3
  - 1.15.4
  - 1.16.0
  - 1.16.0rc1
  - 1.16.0rc2
  - 1.16.1
  - 1.16.2
  - 1.16.3
  - 1.16.4
  - 1.16.5
  - 1.16.6
  - 1.17.0
  - 1.17.0rc1
  - 1.17.0rc2
  - 1.17.1
  - 1.17.2
  - 1.17.3
  - 1.17.4
  - 1.17.5
  - 1.18.0
  - 1.18.0rc1
  - 1.18.1
  - 1.18.2
  - 1.18.3
  - 1.18.4
  - 1.18.5
  - 1.19.0
  - 1.19.0rc1
  - 1.19.0rc2
  - 1.2.0
  - 1.2.1
  - 1.3.0
  - 1.4.0
  - 1.4.1
  - 1.5.0
  - 1.5.1
  - 1.6.0
  - 1.6.1
  - 1.6.2
  - 1.7.0
  - 1.7.1
  - 1.7.2
  - 1.8.0
  - 1.8.1
  - 1.8.2
  - 1.9.0
  - 1.9.1
  - 1.9.2
  - 1.9.3
references:
- type: REPORT
  url: https://github.com/numpy/numpy/issues/19038
- type: ADVISORY
  url: https://github.com/advisories/GHSA-5545-2q6w-2gh6
aliases:
- CVE-2021-41495
- GHSA-5545-2q6w-2gh6
modified: "2021-12-22T21:28:25.939120Z"
published: "2021-12-17T20:15:00Z"