CVE-2018-16878 Denial of service in pacemaker

What is CVE-2018-16878?

CVE-2018-16878 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 18 Apr 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A flaw was found in pacemaker up to and including version 2.0.1. An insufficient verification inflicted preference of uncontrolled processes can lead to DoS

Weakness: CWE-400

Which versions are affected by CVE-2018-16878?

It affects 9 products.

Products include Canonical Ubuntu Linux, Clusterlabs Pacemaker, Debian Debian Linux, Fedoraproject Fedora, Opensuse Leap, Redhat Enterprise Linux and 3 more.

How do I fix CVE-2018-16878?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2018-16878 being exploited?

There is no known exploitation of CVE-2018-16878 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2018-16878, GHSA-gw2c-9hqf-w753, UBUNTU-CVE-2018-16878.