A race condition in chown_one() of systemd allows an attacker to cause systemd to set arbitrary permissions on arbitrary files. Affected releases are systemd versions up to and including 239.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2018-15687 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue did not affect the versions of systemd as shipped with Red Hat Enterprise Linux 7 as the vulnerable code was introduced in a newer version of the package.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 6.3 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |
| Attack Vector | Local |
| Attack Complexity | High |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity Impact | High |
| Availability Impact | None |
| Platform | Package | State |
|---|---|---|
| Red Hat Virtualization 4 | systemd | Not affected |
| Red Hat Enterprise Linux 7 | systemd | Not affected |
Vulmon