CVE-2021-41495

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

How to fix CVE-2021-41495

To remediate CVE-2021-41495, upgrade the affected package to a fixed version below.

• —no fix listed
• —upgrade to 1.19 or later
• —upgrade to 1.19.1 or later

Is CVE-2021-41495 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (3)

• from 0
• from 0, < 1.19
• from 0, < 1.19.1

CVSS scores

References (7)

• ADVISORYgithub.com/advisories/GHSA-5545-2q6w-2gh6
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-41495
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2021-41495
• PATCHgithub.com/numpy/numpy
• WEBgithub.com