CVE-2017-1000082

systemd: fails to parse usernames that start with digits

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Severity

Moderate

Red Hat Product Security

7.2

CVSS 3.0

Review impact separately from score.

Published · July 7, 2017

Updated · November 21, 2025

Description

systemd v233 and earlier fails to safely parse usernames starting with a numeric digit (e.g. "0day"), running the service in question with root privileges rather than the user intended.

Statement

For more information on the impact of numeric usernames in Red Hat Enterprise Linux, please see https://access.redhat.com/solutions/3103631

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 7.2
CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

CWE-20 · Improper Input Validation