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FreeBSD : py-numpy -- Missing return-value validation of the function PyArray_DescrNew (b51cfaea-e919-11ec-9fba-080027240888)

medium Nessus Plugin ID 162124

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the b51cfaea-e919-11ec-9fba-080027240888 advisory.

 - ** DISPUTED ** Null Pointer Dereference vulnerability exists in numpy.sort in NumPy < 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. (CVE-2021-41495)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://github.com/numpy/numpy/pull/20960

http://www.nessus.org/u?3d0ce898

Plugin Details

Severity: Medium

ID: 162124

File Name: freebsd_pkg_b51cfaeae91911ec9fba080027240888.nasl

Version: 1.5

Type: local

Published: 6/11/2022

Updated: 10/20/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 3.5

Temporal Score: 2.9

Vector: CVSS2#AV:N/AC:M/Au:S/C:N/I:N/A:P

CVSS Score Source: CVE-2021-41495

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.9

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:py310-numpy, p-cpe:/a:freebsd:freebsd:py38-numpy, p-cpe:/a:freebsd:freebsd:py39-numpy, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/11/2022

Vulnerability Publication Date: 12/17/2021

Reference Information

CVE: CVE-2021-41495