VDB
CVE-2018-6954
CVE-2018-6954
PUBLISHED
CVSS 7.800000190734863 HIGH
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.
EPSS 0.52% · 42.3th percentile
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.52%
42.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | systemd | 229-4ubuntu21.2, 229-4ubuntu21.8, 229-4ubuntu21.9 |
| Ubuntu:18.04:LTS | systemd | 234-2ubuntu12, 235-3ubuntu2, 235-3ubuntu3 |
Timeline
- Feb 13, 2018 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Oct 27, 2021 EPSS Score
- Dec 29, 2021 EPSS Score
- Mar 3, 2022 EPSS Score
- May 5, 2022 EPSS Score
- Jul 7, 2022 EPSS Score
- Sep 9, 2022 EPSS Score
- Nov 11, 2022 EPSS Score
- Jan 13, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2018-6954 third-party-advisory
- https://ubuntu.com/security/notices/USN-3816-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-3816-2 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2018-6954 third-party-advisory