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.
References (4)
Core 4
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://github.com/systemd/systemd/issues/6237
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1038839
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/99507
Mailing List, Patch, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2017/07/02/1
Scores
CVSS v3
9.8
EPSS
0.0388
EPSS Percentile
88.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-269
Status
published
Products (1)
systemd_project/systemd
229 - 234
Published
Jul 07, 2017
Tracked Since
Feb 18, 2026