CVE-2018-5141 Denial of service in Firefox

High 8.2 Published Updated

Attackers can abuse the Push API to trigger denial of service or display unwanted content without user interaction in Firefox.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2018-5141?

CVE-2018-5141 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 11 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the notifications Push API where notifications can be sent through service workers by web content without direct user interaction. This could be used to open new tabs in a denial of service (DOS) attack or to display unwanted content from arbitrary URLs to users. This vulnerability affects Firefox < 59.

Weakness: CWE-20

Which versions are affected by CVE-2018-5141?

It affects 2 products.

Products include Canonical Ubuntu Linux, Mozilla Firefox.

How do I fix CVE-2018-5141?

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-2018-5141 being exploited?

There is no known exploitation of CVE-2018-5141 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as GHSA-77wh-39r6-7gg9, UBUNTU-CVE-2018-5141.

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