CVE-2021-41495

Public Exploit

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

References

Link	Tags
https://github.com/numpy/numpy/issues/19038	issue tracking exploit third party advisory
https://www.oracle.com/security-alerts/cpujul2022.html	third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-41495?: CVE-2021-41495 has been scored as a medium severity vulnerability.
How to fix CVE-2021-41495?: To fix CVE-2021-41495, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-41495 being actively exploited in the wild?: It is possible that CVE-2021-41495 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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Description

Category

CWE-476 – NULL Pointer Dereference

References

Frequently Asked Questions