Buffer overflow in Google Chrome
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 perform a sandbox escape via a crafted HTML page.
Vulnerability class: Buffer Overflow
EPSS: 0.014 (70.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
Affected products
- Google Chrome — versions unspecified
- Fedoraproject Fedora — versions 32, 33
Weakness classification (CWE)
References
- chrome-cve-admin@google.com (x_refsource_MISC, Release Notes, Vendor Advisory)
- chrome-cve-admin@google.com (Permissions Required, Exploit, Patch, x_refsource_MISC, Issue Tracking, Vendor Advisory)
- chrome-cve-admin@google.com (x_refsource_FEDORA, vendor-advisory)
- chrome-cve-admin@google.com (x_refsource_FEDORA, vendor-advisory)
- chrome-cve-admin@google.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2021-21154?
- CVE-2021-21154 is a critical-severity vulnerability in Google Chrome, classified under Out-of-bounds Write. CVSS score: 9.6/10. Published 2021-02-22.
- How severe is CVE-2021-21154?
- Critical severity. CVSS v3 base score is 9.6 out of 10.