CVE-2017-18078
29.01.2018, 05:29
systemd-tmpfiles in systemd before 237 attempts to support ownership/permission changes on hardlinked files even if the fs.protected_hardlinks sysctl is turned off, which allows local users to bypass intended access restrictions via vectors involving a hard link to a file for which the user lacks write access, as demonstrated by changing the ownership of the /etc/passwd file.
| Vendor | Product | Version |
|---|---|---|
| systemd_project | systemd | 𝑥 < 237 |
| debian | debian_linux | 8.0 |
| opensuse | leap | 42.3 |
𝑥
= Vulnerable software versions
Debian Releases
References