Buffer overflow in Google Chrome
CVE-2021-4055
Heap buffer overflow in extensions in Google Chrome prior to 96.0.4664.93 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension.
Vulnerability class: Buffer Overflow
EPSS: 0.011 (60.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Google Chrome — versions unspecified
- Debian Debian_linux — versions 10.0, 11.0
- Fedoraproject Fedora — versions 34
Weakness classification (CWE)
References
- chrome-cve-admin@google.com (x_refsource_MISC, Vendor Advisory)
- chrome-cve-admin@google.com (Permissions Required, x_refsource_MISC)
- chrome-cve-admin@google.com (x_refsource_FEDORA, vendor-advisory)
- chrome-cve-admin@google.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- chrome-cve-admin@google.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2021-4055?
- CVE-2021-4055 is a high-severity vulnerability in Google Chrome, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2021-12-23.
- How severe is CVE-2021-4055?
- High severity. CVSS v3 base score is 8.8 out of 10.