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Moderate severity vulnerability that affects com.puppycrawl.tools:checkstyle

Moderate severity GitHub Reviewed Published Mar 14, 2019 to the GitHub Advisory Database • Updated Jan 9, 2023

Package

maven com.puppycrawl.tools:checkstyle (Maven)

Affected versions

< 8.18

Patched versions

8.18

Description

Checkstyle prior to 8.18 loads external DTDs by default, which can potentially lead to denial of service attacks or the leaking of confidential information.

References

Published to the GitHub Advisory Database Mar 14, 2019
Reviewed Jun 16, 2020
Last updated Jan 9, 2023

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
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

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

EPSS score

0.788%
(82nd percentile)

Weaknesses

CVE ID

CVE-2019-9658

GHSA ID

GHSA-gp32-7h29-rpxm

Source code

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