CVE-2021-21202

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

Use after free in extensions in Google Chrome prior to 90.0.4430.72 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension.

References

https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop_14.html

https://crbug.com/1188889

https://www.debian.org/security/2021/dsa-4906

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

https://lists.fedoraproject.org/archives/list/[email protected]/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/

https://lists.fedoraproject.org/archives/list/[email protected]/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/

https://lists.fedoraproject.org/archives/list/[email protected]/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/

Details

Source: MITRE

Published: 2021-04-26

Updated: 2021-06-01

Type: CWE-416

Risk Information

CVSS v2

Base Score: 6.8

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

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 8.6

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Impact Score: 6

Exploitability Score: 1.8

Severity: HIGH

Tenable Plugins

View all (7 total)

IDNameProductFamilySeverity
149603openSUSE Security Update : Chromium (openSUSE-2021-629)NessusSuSE Local Security Checks
high
149223GLSA-202104-08 : Chromium, Google Chrome: Multiple vulnerabilitiesNessusGentoo Local Security Checks
high
149082Debian DSA-4906-1 : chromium - security updateNessusDebian Local Security Checks
critical
148704FreeBSD : chromium -- multiple vulnerabilities (f3d86439-9def-11eb-97a0-e09467587c17)NessusFreeBSD Local Security Checks
high
148693Microsoft Edge (Chromium) < 90.0.818.39 Multiple VulnerabilitiesNessusWindows
high
148559Google Chrome < 90.0.4430.72 Multiple VulnerabilitiesNessusMacOS X Local Security Checks
high
148558Google Chrome < 90.0.4430.72 Multiple VulnerabilitiesNessusWindows
high