CVE-2021-4078: Type confusion in V8
Type confusion in V8 in Google Chrome prior to 96.0.4664.93 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Credit
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Google Chrome (Trace Event)to a version that resolves this vulnerability.Fixed in 96.0.4664.93 - Upgrade
Upgrade
alpine/qt5-qtwebengineto a version that resolves this vulnerability.Fixed in 5.15.3_git20211112-r1 - Upgrade
Upgrade
alpine/qt5-qtwebengineto a version that resolves this vulnerability.Fixed in 5.15.3_git20211127-r1 - Upgrade
Upgrade
debian/chromiumto a version that resolves this vulnerability.Fixed in 150.0.7871.100-1~deb12u1Fixed in 156.0.8078.79-1~deb12u1Fixed in 150.0.7871.181-1~deb13u1Fixed in 156.0.8078.79-1~deb13u1Fixed in 156.0.8078.79-1
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is CVE-2021-4078?
CVE-2021-4078 is a vulnerability in V8 in Google Chrome prior to version 96.0.4664.93 that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page.
What is the severity of CVE-2021-4078?
CVE-2021-4078 has a severity value of 8.8, indicating it is a high severity vulnerability.
Which software is affected by CVE-2021-4078?
CVE-2021-4078 affects Google Chrome versions prior to 96.0.4664.93 and Chromium versions 90.0.4430.212-1~deb10u1, 116.0.5845.180-1~deb11u1, 118.0.5993.70-1~deb11u1, 116.0.5845.180-1~deb12u1, 118.0.5993.70-1~deb12u1, and 118.0.5993.70-1. It also affects Debian Debian Linux 10.0 and 11.0.
How can a remote attacker exploit CVE-2021-4078?
A remote attacker can potentially exploit CVE-2021-4078 by using a crafted HTML page to trigger a type confusion vulnerability in V8, leading to heap corruption.
Where can I find more information about CVE-2021-4078?
You can find more information about CVE-2021-4078 in the following references: 1. [Google Chrome Release Blog](https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop.html) 2. [Chromium bug tracker](https://crbug.com/1268738) 3. [Gentoo GLSA](https://security.gentoo.org/glsa/202208-25)