CVE-2021-21146

Use after free in Navigation in Google Chrome prior to 88.0.4324.146 allowed a remote attacker who had compromised the renderer process to potentially perform…

published February 9, 2021

CVSS
—
EPSS
1%
Percentile
66.1
In the wild
Unconfirmed
What it is

⚠️ A crafty use-after-free vulnerability lurks in Google Chrome versions before 88.0.4324.146! This one could let an attacker slip out of their sandbox and wreak havoc with just a specially crafted HTML page! Think of it like a magician performing a trick with a locked box. If they find a way to open it from the inside without the key, they can escape confinement and cause chaos wherever they please! If an attacker manages to exploit this vulnerability, they could potentially break free from the browser's protective walls, leading to unauthorized access to sensitive data or system control. It’s not just a minor slip; it opens the door to a world of risk!

Put simply

Think of it like a magician performing a trick with a locked box. If they find a way to open it from the inside without the key, they can escape confinement and cause chaos wherever they please! This use-after-free vulnerability occurs in the Navigation component of Google Chrome, allowing a compromised renderer process to manipulate memory incorrectly, potentially enabling a sandbox escape through malicious HTML content.

What to do

If an attacker manages to exploit this vulnerability, they could potentially break free from the browser's protective walls, leading to unauthorized access to sensitive data or system control. It’s not just a minor slip; it opens the door to a world of risk! Update Google Chrome to version 88.0.4324.146 or later as soon as possible to patch this vulnerability. Ensure that your browser is set to auto-update for future protection, and routinely check for updates to stay secure! You've got this! Stay vigilant and patch up, and you'll keep your browser fortress secure! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01128 · 66.1th percentile
Published
2021-02-09T14:55Z
EPSS history
Timeline
  • 09 FEB 14:55Z
    Use after free in Navigation in Google Chrome prior to 88.0.4324.146 allowed a remote attacker who had compromised the renderer process to potentially perform…
    cvelistv5