CVE-2023-6345KEV · OVERDUE

Google Skia Integer Overflow Vulnerability

Critical · published November 29, 2023

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.6. It is confirmed in active exploitation. It sits in the 97.0th percentile for exploit probability.

1037
days past CISA
deadline
CVSS v3.1
9.6
EPSS
16%
Percentile
97.0
In the wild
Confirmed
What it is

🚨 An integer overflow in Skia could enable a crafty attacker to escape the sandbox in Google Chrome versions prior to 119.0.6045.199—talk about a sneaky backdoor! 🔥 Think of Skia as a tightly controlled kitchen where chefs can only access certain ingredients. An integer overflow is like a chef accidentally dropping a whole crate of supplies into the kitchen—suddenly, they can reach forbidden spices and cook up dishes they shouldn’t be able to! If exploited, this vulnerability could allow an attacker to break free from the renderer’s constraints and execute arbitrary code on the user's system. That means they could steal sensitive information, install malware, or take control of the device entirely—absolutely devastating!

Put simply

Think of Skia as a tightly controlled kitchen where chefs can only access certain ingredients. An integer overflow is like a chef accidentally dropping a whole crate of supplies into the kitchen—suddenly, they can reach forbidden spices and cook up dishes they shouldn’t be able to! This flaw occurs in Skia, the graphics library used by Chrome, and allows an attacker with access to the renderer process to manipulate integer values beyond their limits, leading to potential code execution outside the sandbox.

What to do

If exploited, this vulnerability could allow an attacker to break free from the renderer’s constraints and execute arbitrary code on the user's system. That means they could steal sensitive information, install malware, or take control of the device entirely—absolutely devastating! Immediately update Google Chrome to version 119.0.6045.199 or later to mitigate this vulnerability. Regularly check for updates to keep your browser secure! You've got this! Stay vigilant, keep your software updated, and you'll be a security hero in no time! 🛡️

The record
Technical detail
CVSS v3.1
9.6 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.16468 · 97.0th percentile
Published
2023-11-29T12:02Z
KEV added
2023-11-30 · due 2023-12-21
EPSS history
Timeline
  • 30 NOV 00:00Z
    Added to CISA KEV — remediate by Dec 21
    kev
  • 29 NOV 12:02Z
    Integer overflow in Skia in Google Chrome prior to 119.0.6045.199 allowed a remote attacker who had compromised the renderer process to potentially perform a…
    cvelistv5