CVE-2021-21148

high

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.

From the Tenable Blog

CVE-2021-21148: Google Chrome Heap Buffer Overflow Vulnerability Exploited in the Wild
CVE-2021-21148: Google Chrome Heap Buffer Overflow Vulnerability Exploited in the Wild

Published: 2021-02-05

Following reports of in-the-wild exploitation, Google released a patch for the third browser-based zero-day vulnerability of 2021. Background On February 4, Google published a stable channel update for Chrome for Desktop. This release contained a single security fix to address a critical zero-day vulnerability that had been exploited in the wild.

References

https://www.tenable.com/cyber-exposure/2021-threat-landscape-retrospective

https://www.tenable.com/blog/cve-2021-21148-google-chrome-heap-buffer-overflow-vulnerability-exploited-in-the-wild

https://www.debian.org/security/2021/dsa-4858

https://security.gentoo.org/glsa/202104-08

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUQSMNV7INLDDSD3RKI5S5EAULX2QC7P/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7ACWYJ74Z3YN2XH4QMUEGNBC3VXX464L/

https://crbug.com/1170176

https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html

http://packetstormsecurity.com/files/162579/Chrome-Array-Transfer-Bypass.html

Details

Source: Mitre, NVD

Published: 2021-02-09

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High