CVE-2018-15688
HIGHCVSS 8.8/10EPSS 1.68%
Last modified
CVE-2018-15688 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A buffer overflow vulnerability in the dhcp6 client of systemd allows a malicious dhcp6 server to overwrite heap memory in systemd-networkd. Affected releases are systemd: versions up to and including 239.. EPSS estimates a 1.68% chance of exploitation in the next 30 days.
Description
A buffer overflow vulnerability in the dhcp6 client of systemd allows a malicious dhcp6 server to overwrite heap memory in systemd-networkd. Affected releases are systemd: versions up to and including 239.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Systemd Project | Systemd | <= 239 |
| Debian | Debian Linux | 8.0 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 18.10 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Server Aus | 7.6 |
| Redhat | Enterprise Linux Server Eus | 7.6 |
| Redhat | Enterprise Linux Server Tus | 7.6 |
| Redhat | Enterprise Linux Workstation | 7.0 |
References
- http://www.securityfocus.com/bid/105745Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHBA-2019:0327Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3665Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0049Third Party Advisory
- https://github.com/systemd/systemd/pull/10518Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00017.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201810-10Third Party Advisory
- https://usn.ubuntu.com/3806-1/Third Party Advisory
- https://usn.ubuntu.com/3807-1/Third Party Advisory
- http://www.securityfocus.com/bid/105745Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHBA-2019:0327Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3665Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0049Third Party Advisory
- https://github.com/systemd/systemd/pull/10518Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00017.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201810-10Third Party Advisory
- https://usn.ubuntu.com/3806-1/Third Party Advisory
- https://usn.ubuntu.com/3807-1/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-15688?
A buffer overflow vulnerability in the dhcp6 client of systemd allows a malicious dhcp6 server to overwrite heap memory in systemd-networkd. Affected releases are systemd: versions up to and including 239.
How severe is CVE-2018-15688?
CVE-2018-15688 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.68% probability of exploitation in the next 30 days.
How do I fix CVE-2018-15688?
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.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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