CVE-2018-15688

Out-of-Bounds write in systemd-networkd dhcpv6 option handling

HIGH
8.8
CVSS Score
Published: October 26, 2018 at 02:00 PM UTC
Updated: June 17, 2026 at 01:42 AM UTC
10 products affected across 5 vendorsDebian LinuxUbuntu LinuxEnterprise Linux Desktop

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Severity
HIGH8.8
Exploit prediction
EPSS 2%
SSVC
No known exploit

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

References (9)

VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/105745
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHBA-2019:0327
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2018:3665
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:0049
x_refsource_MISCPatchThird Party Advisory
https://github.com/systemd/systemd/pull/10518
Mailing Listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00017.html
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
https://security.gentoo.org/glsa/201810-10
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/3806-1/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120

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