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Incomplete blacklist vulnerability in the chfn function...

Low severity Unreviewed Published May 14, 2022 to the GitHub Advisory Database • Updated Apr 12, 2025

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

Incomplete blacklist vulnerability in the chfn function in libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, allows local users to cause a denial of service (/etc/passwd corruption) via a newline character in the GECOS field.

References

Published by the National Vulnerability Database Aug 11, 2015
Published to the GitHub Advisory Database May 14, 2022
Last updated Apr 12, 2025

Severity

Low

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.
(94th percentile)

Weaknesses

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Learn more on MITRE.

CVE ID

CVE-2015-3245

GHSA ID

GHSA-q4h8-6f3r-mvww

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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