CVE-2019-5789 Use after free in Chrome

High 8.8 Published Updated

A remote attacker with compromised renderer access can execute arbitrary code via a crafted HTML page due to an integer overflow leading to use-after-free in WebMIDI.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2019-5789?

CVE-2019-5789 is a high-severity use after free vulnerability in Google Chrome, published on 23 May 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An integer overflow that leads to a use-after-free in WebMIDI in Google Chrome on Windows prior to 73.0.3683.75 allowed a remote attacker who had compromised the renderer process to execute arbitrary code via a crafted HTML page.

Weakness: CWE-416, CWE-190

Which versions are affected by CVE-2019-5789?

It affects 3 products.

Products include Google Chrome, Opensuse Backports, Opensuse Leap.

How do I fix CVE-2019-5789?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2019-5789 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-5789 exists.

Public exploit code: 1 Exploit-DB entry.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-5789, GHSA-v5pq-9p96-j22q, UBUNTU-CVE-2019-5789.

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