CVE-2023-3079KEV · OVERDUECWE-843

Google Chromium V8 Type Confusion Vulnerability

High · published June 6, 2023

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 8.8. It is confirmed in active exploitation. It sits in the 98.5th percentile for exploit probability.

1214
days past CISA
deadline
CVSS v3.1
8.8
EPSS
38%
Percentile
98.5
In the wild
Confirmed
What it is

🚨 A crafty crafted HTML page can unleash chaos in Chrome! This type confusion vulnerability in V8 affects versions prior to 114.0.5735.110, making it a golden opportunity for attackers. 🔥 Think of it like a restaurant where the kitchen mislabels ingredients — one wrong ticket could lead to a disastrous dish! Here, a malicious page can confuse the browser's understanding of data types, leading to heap corruption. An attacker could exploit this vulnerability to execute arbitrary code, potentially taking control of your system, stealing sensitive information, or wreaking havoc on your browser. It’s absolutely devastating, especially since this vulnerability is already known to be exploited!

Put simply

Think of it like a restaurant where the kitchen mislabels ingredients — one wrong ticket could lead to a disastrous dish! Here, a malicious page can confuse the browser's understanding of data types, leading to heap corruption. The type confusion in V8 allows an attacker to manipulate the way memory is handled in Chrome, which can lead to heap corruption and ultimately, remote code execution. This makes it a serious threat to users running vulnerable versions of the browser.

What to do

An attacker could exploit this vulnerability to execute arbitrary code, potentially taking control of your system, stealing sensitive information, or wreaking havoc on your browser. It’s absolutely devastating, especially since this vulnerability is already known to be exploited! Upgrade Google Chrome to version 114.0.5735.110 or later immediately. If you’re an organization, ensure all user machines are updated and consider implementing browser security policies to mitigate risk during transition. 🛡️ You've got this! Follow these steps, and you'll have your browser secure in no time! 😊

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.37858 · 98.5th percentile
Weakness
CWE-843 · Access of Resource Using Incompatible Type ('Type Confusion')
Published
2023-06-06T02:15Z
KEV added
2023-06-07 · due 2023-06-28
Affected products (7)
ProductVersionsFixed in
google/chrome< 114.0.5735.110114.0.5735.110
fedoraproject/fedoraall versions—
fedoraproject/fedoraall versions—
debian/debian_linuxall versions—
debian/debian_linuxall versions—
couchbase/couchbase_server< 7.1.57.1.5
couchbase/couchbase_serverall versions—
References (21)
http://packetstormsecurity.com/files/176211/Chrome-V8-Type-Confusion.html · [email protected]http://packetstormsecurity.com/files/176212/Chrome-V8-Type-Confusion-New-Sandbox-Escape.html · [email protected]https://chromereleases.googleblog.com/2023/06/stable-channel-update-for-desktop.html · [email protected]https://crbug.com/1450481 · [email protected]https://lists.fedoraproject.org/archives/list/[email protected]/message/DYTXO5E3FI3I2ETDP3HF4SHYYTFMKMIC/ · [email protected]https://lists.fedoraproject.org/archives/list/[email protected]/message/U4OXTNIZY4JYHJT7CVLPAJQILI6BISVM/ · [email protected]https://security.gentoo.org/glsa/202311-11 · [email protected]https://security.gentoo.org/glsa/202401-34 · [email protected]https://www.couchbase.com/alerts/ · [email protected]https://www.debian.org/security/2023/dsa-5420 · [email protected]http://packetstormsecurity.com/files/176211/Chrome-V8-Type-Confusion.html · af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/176212/Chrome-V8-Type-Confusion-New-Sandbox-Escape.html · af854a3a-2127-422b-91ae-364da2661108https://chromereleases.googleblog.com/2023/06/stable-channel-update-for-desktop.html · af854a3a-2127-422b-91ae-364da2661108https://crbug.com/1450481 · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/[email protected]/message/DYTXO5E3FI3I2ETDP3HF4SHYYTFMKMIC/ · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/[email protected]/message/U4OXTNIZY4JYHJT7CVLPAJQILI6BISVM/ · af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202311-11 · af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202401-34 · af854a3a-2127-422b-91ae-364da2661108https://www.couchbase.com/alerts/ · af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2023/dsa-5420 · af854a3a-2127-422b-91ae-364da2661108https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-3079 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 07 JUN 00:00Z
    Added to CISA KEV — remediate by Jun 28
    kev
  • 05 JUN 21:40Z
    Type confusion in V8 in Google Chrome prior to 114.0.5735.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page
    cvelistv5