CVE-2021-21154

Heap buffer overflow in Tab Strip in Google Chrome prior to 88.0.4324.182 allowed a remote attacker who had compromised the renderer process to potentially…

published February 22, 2021

CVSS
—
EPSS
1%
Percentile
72.7
In the wild
Unconfirmed
What it is

⚠️ A crafty crafted HTML page could let an attacker slip right through Google Chrome's defences! 🚨 Think of it like a surprise delivery of a sketchy package that bypasses security at a hotel — if the staff never check the contents, who knows what might get inside! If exploited, this heap buffer overflow in the Tab Strip could allow a remote attacker to potentially escape the sandbox and take control of your browser environment. This means they might execute arbitrary code or manipulate your browsing experience without your consent, which could be a game changer for anyone trying to keep their data secure!

Put simply

Think of it like a surprise delivery of a sketchy package that bypasses security at a hotel — if the staff never check the contents, who knows what might get inside! This vulnerability arises from a heap buffer overflow in the Tab Strip component of Google Chrome, which can occur when the renderer process is compromised and processes a specially crafted HTML page. This flaw could lead to an escape from the browser's sandbox protections, enabling further exploitation.

What to do

If exploited, this heap buffer overflow in the Tab Strip could allow a remote attacker to potentially escape the sandbox and take control of your browser environment. This means they might execute arbitrary code or manipulate your browsing experience without your consent, which could be a game changer for anyone trying to keep their data secure! To safeguard against this vulnerability, ensure you update Google Chrome to version 88.0.4324.182 or later. Regularly check for updates to your browser and enable automatic updates, so you always stay protected. 🛡️ You've got this! Stay vigilant and keep your browser updated to protect yourself from sneaky vulnerabilities like this one! 🌟

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01422 · 72.7th percentile
Published
2021-02-22T21:20Z
EPSS history
Timeline
  • 22 FEB 21:20Z
    Heap buffer overflow in Tab Strip in Google Chrome prior to 88.0.4324.182 allowed a remote attacker who had compromised the renderer process to potentially…
    cvelistv5