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diplib Double Free

Moderate severity GitHub Reviewed Published Nov 4, 2022 to the GitHub Advisory Database • Updated May 2, 2025

Package

pip diplib (pip)

Affected versions

< 3.1.0

Patched versions

3.1.0

Description

diplib v3.0.0 is vulnerable to Double Free.

References

Published by the National Vulnerability Database Nov 4, 2022
Published to the GitHub Advisory Database Nov 4, 2022
Reviewed Nov 21, 2024
Last updated May 2, 2025

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(55th percentile)

Weaknesses

Double Free

The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. Learn more on MITRE.

Use After Free

Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Learn more on MITRE.

CVE ID

CVE-2021-39432

GHSA ID

GHSA-xf2w-5673-h6ww

Source code

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