VDB
CVE-2018-6954
CVE-2018-6954
PUBLISHED
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 0.14% · 34.7th percentile
Risk Scores
EPSS Score
0.14%
34.7th 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 |
Exploit Intelligence
- https://github.com/systemd/systemd/issues/7986 (nist-nvd)
- glcve_test.go (github-poc)
- glcve_test.go (github-poc)
- glcve_test.go (github-poc)
- glcve_test.go (github-poc)
- glcve_test.go (github-poc)
- glcve_test.go (github-poc)
Timeline
- Feb 13, 2018 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 28, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 5, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
- Jan 8, 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