CVE-2016-5185 Use after free in Chrome prior to 54.0.2840.59 for Windows, Mac, and Linux; 54.0.2840.85 for Android

High 8.8 Published Updated

A remote attacker can trigger an out-of-bounds memory read via crafted HTML pages due to incorrect reentrance handling in Chrome's Blink engine.

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-2016-5185?

CVE-2016-5185 is a high-severity use after free vulnerability in Google Chrome, published on 18 Dec 2016. 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

Blink in Google Chrome prior to 54.0.2840.59 for Windows, Mac, and Linux; 54.0.2840.85 for Android incorrectly allowed reentrance of FrameView::updateLifecyclePhasesInternal(), which allowed a remote attacker to perform an out of bounds memory read via crafted HTML pages.

Weakness: CWE-416

Which versions are affected by CVE-2016-5185?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2016-5185?

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-2016-5185 being exploited?

There is no known exploitation of CVE-2016-5185 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as GHSA-p7vv-6mr3-qfv8, UBUNTU-CVE-2016-5185.

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