CVE-2018-15688

Publication date 26 October 2018

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

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.

Status

Package Ubuntu Release Status
network-manager 18.10 cosmic
Fixed 1.12.4-1ubuntu1.1
18.04 LTS bionic
Fixed 1.10.6-2ubuntu1.1
16.04 LTS xenial
Fixed 1.2.6-0ubuntu0.16.04.3
14.04 LTS trusty Not in release
systemd 18.10 cosmic
Fixed 239-7ubuntu10.1
18.04 LTS bionic
Fixed 237-3ubuntu10.4
16.04 LTS xenial
Fixed 229-4ubuntu21.6
14.04 LTS trusty
Not affected

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
network-manager
systemd

Severity score breakdown

Parameter Value
Base score 8.8 · High
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3807-1
    • NetworkManager vulnerability
    • 5 November 2018
    • USN-3806-1
    • systemd vulnerability
    • 5 November 2018

Other references