What’s Vulnerable › Vulnerabilities

CVE-2018-15688: Out-of-Bounds write in systemd-networkd dhcpv6 option handling

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-10-26 · updated 2026-06-17
• Weakness: CWE-120

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.

Affected products

• Canonical Ubuntu Linux: 16.04, 18.04, 18.10
• Debian Linux: 8.0
• 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
• systemd: through 239

References

• http://www.securityfocus.com/bid/105745
• https://access.redhat.com/errata/RHBA-2019:0327
• https://access.redhat.com/errata/RHSA-2018:3665
• https://access.redhat.com/errata/RHSA-2019:0049
• https://github.com/systemd/systemd/pull/10518
• https://lists.debian.org/debian-lts-announce/2018/11/msg00017.html
• https://security.gentoo.org/glsa/201810-10
• https://usn.ubuntu.com/3806-1/
• https://usn.ubuntu.com/3807-1/
• http://www.securityfocus.com/bid/105745
• https://access.redhat.com/errata/RHBA-2019:0327
• https://access.redhat.com/errata/RHSA-2018:3665

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