CVE-2016-5142

The Web Cryptography API (aka WebCrypto) implementation in Blink, as used in Google Chrome before 52.0.2743.116, does not properly copy data buffers, which…

published August 7, 2016

CVSS
—
EPSS
2%
Percentile
76.4
In the wild
Unconfirmed
What it is

⚠️ A sneaky use-after-free bug lurking in the Web Cryptography API for Chrome could leave servers gasping for breath! Think of it like a crowded restaurant where a waiter unintentionally drops a frequently-used dish, forcing the kitchen to scramble to keep up with orders — the chaos can cause some serious delays. In this case, a crafted JavaScript code can trigger unexpected behavior, potentially leading to a denial of service. If exploited, an attacker could create crafted JavaScript that disrupts service, causing the browser to crash or become unresponsive. While the immediate impact is a denial of service, the underlying issues could lead to even more troublesome situations if not addressed. It’s definitely something to keep an eye on!

Put simply

Think of it like a crowded restaurant where a waiter unintentionally drops a frequently-used dish, forcing the kitchen to scramble to keep up with orders — the chaos can cause some serious delays. In this case, a crafted JavaScript code can trigger unexpected behavior, potentially leading to a denial of service. This vulnerability in the Blink engine affects how data buffers are copied in the Web Cryptography implementation, creating a use-after-free condition. This means that memory could be mishandled, leading to unexpected application behavior or crashes.

What to do

If exploited, an attacker could create crafted JavaScript that disrupts service, causing the browser to crash or become unresponsive. While the immediate impact is a denial of service, the underlying issues could lead to even more troublesome situations if not addressed. It’s definitely something to keep an eye on! To keep your environment safe, make sure to update Google Chrome to the latest version. Regularly check for updates and ensure your software is up-to-date to avoid any potential exploits. Staying informed about these vulnerabilities is equally important! You've got this! Stay vigilant and keep your browser updated to ensure you’re protected. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01662 · 76.4th percentile
Published
2016-08-07T19:00Z
EPSS history
Timeline
  • 07 AUG 19:00Z
    The Web Cryptography API (aka WebCrypto) implementation in Blink, as used in Google Chrome before 52.0.2743.116, does not properly copy data buffers, which…
    cvelistv5