systemd-tmpfiles in systemd through 237 mishandles symlinks present in non-terminal path components, which allows local users to obtain ownership of arbitrary files via vectors involving creation of a directory and a file under that directory, and later replacing that directory with a symlink. This occurs even if the fs.protected_symlinks sysctl is turned on.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2018-18698 | systemd-tmpfiles in systemd through 237 mishandles symlinks present in non-terminal path components, which allows local users to obtain ownership of arbitrary files via vectors involving creation of a directory and a file under that directory, and later replacing that directory with a symlink. This occurs even if the fs.protected_symlinks sysctl is turned on. |
Ubuntu USN |
USN-3816-1 | systemd vulnerabilities |
Ubuntu USN |
USN-3816-2 | systemd vulnerability |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Sat, 12 Jul 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
epss
|
epss
|
Mon, 09 Jun 2025 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2025-06-09T15:54:51.003Z
Reserved: 2018-02-13T00:00:00.000Z
Link: CVE-2018-6954
Updated: 2024-08-05T06:17:17.343Z
Status : Modified
Published: 2018-02-13T20:29:00.547
Modified: 2025-06-09T16:15:29.307
Link: CVE-2018-6954
OpenCVE Enrichment
No data.
EUVD
Ubuntu USN