Buffer overflow in Systemd
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.017 (76.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
- Systemd — versions unspecified
- Systemd Project
- Canonical Ubuntu Linux — versions 16.04, 18.04, 18.10
- Debian Linux — versions 8.0
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.6
- Red Hat Enterprise Linux Server Eus — versions 7.6
- Red Hat Enterprise Linux Server Tus — versions 7.6
- Red Hat Enterprise Linux Workstation — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.gentoo.org/glsa/201810-10 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/11/msg00017.html (mailing-list, Mailing List, Third Party Advisory)
- usn.ubuntu.com/3807-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3806-1/ (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3665 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/105745 (VDB Entry, Third Party Advisory, vdb-entry)
- github.com/systemd/systemd/pull/10518 (Patch, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:0049 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHBA-2019:0327 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-15688?
- CVE-2018-15688 is a high-severity vulnerability in Systemd, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2018-10-26.
- How severe is CVE-2018-15688?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2018-15688 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.