CVE-2018-15687
HIGHCVSS 7/10EPSS 1.06%
Last modified
CVE-2018-15687 is a high-severity vulnerability rated 7/10 on the CVSS scale. 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.. EPSS estimates a 1.06% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 18.10 |
| Systemd Project | Systemd | >= 235, < 240 |
References
- http://www.securityfocus.com/bid/105748Broken Link, Third Party Advisory, VDB Entry
- https://github.com/systemd/systemd/pull/10517/commitsPatch, Third Party Advisory
- https://security.gentoo.org/glsa/201810-10Third Party Advisory
- https://usn.ubuntu.com/3816-1/Third Party Advisory
- https://www.exploit-db.com/exploits/45715/Exploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/105748Broken Link, Third Party Advisory, VDB Entry
- https://github.com/systemd/systemd/pull/10517/commitsPatch, Third Party Advisory
- https://security.gentoo.org/glsa/201810-10Third Party Advisory
- https://usn.ubuntu.com/3816-1/Third Party Advisory
- https://www.exploit-db.com/exploits/45715/Exploit, Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-15687?
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.
How severe is CVE-2018-15687?
CVE-2018-15687 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 1.06% probability of exploitation in the next 30 days.
How do I fix CVE-2018-15687?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Are you affected by CVE-2018-15687?
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Scan your code nowSource: NVD / NIST