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
EPSS: 0.017 (74.4th percentile) — read the EPSS interpretation.
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.
Affected products
- Systemd — versions unspecified
- Systemd_project Systemd
- Canonical Ubuntu_linux — versions 16.04, 18.04, 18.10
- Debian Debian_linux — versions 8.0
- Redhat Enterprise_linux_desktop — versions 7.0
- Redhat Enterprise_linux_server — versions 7.0
- Redhat Enterprise_linux_server_aus — versions 7.6
- Redhat Enterprise_linux_server_eus — versions 7.6
- Redhat Enterprise_linux_server_tus — versions 7.6
- Redhat Enterprise_linux_workstation — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@ubuntu.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- security@ubuntu.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@ubuntu.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- security@ubuntu.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- security@ubuntu.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@ubuntu.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@ubuntu.com (Patch, Third Party Advisory, x_refsource_MISC)
- security@ubuntu.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@ubuntu.com (x_refsource_REDHAT, 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.