CVE-2021-21148
HighActively exploited (CISA KEV)
Description
Heap buffer overflow in V8 in Google Chrome prior to 88.0.4324.150 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Google Chromium V8
PublishedFeb 9, 2021
First seenFeb 9, 2021
Added to KEVNov 3, 2021
Weakness typeCWE-787Out-of-bounds write
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: Nov 17, 2021Update
- google chrome88.0.4324.150 or later
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUQSMNV7INLDDSD3RKI5S5EAULX2QC7P/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7ACWYJ74Z3YN2XH4QMUEGNBC3VXX464L/
- debian.org/security/2021/dsa-4858
- security.gentoo.org/glsa/202104-08
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| google chrome | v < 88.0.4324.150 | 88.0.4324.150 |
| fedoraproject fedora | 32, 33 | — |
| debian debian_linux | 10.0 | — |
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