CVE-2021-34141

Publication date 17 December 2021

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

An incomplete string comparison in the numpy.core component in NumPy before 1.22.0 allows attackers to trigger slightly incorrect copying by constructing specific string objects. NOTE: the vendor states that this reported code behavior is "completely harmless."

Status

Show unmaintained releases

Package	Ubuntu Release	Status
numpy	23.04 lunar	Not affected
	22.10 kinetic	Fixed 1:1.21.5-1ubuntu22.10.1
	22.04 LTS jammy	Fixed 1:1.21.5-1ubuntu22.04.1
	21.10 impish	Ignored end of life
	21.04 hirsute	Ignored end of life
	20.04 LTS focal	Fixed 1:1.17.4-5ubuntu3.1
	16.04 LTS xenial	Ignored end of standard support
	14.04 LTS trusty	Ignored end of standard support

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
numpy	Upstream: eeef9d4

Severity score breakdown

Parameter	Value
Base score	5.3 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	Low
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

Related Ubuntu Security Notices (USN)

USN-5763-1
NumPy vulnerabilities
7 December 2022