CVE-2021-21111

critical
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

Insufficient policy enforcement in WebUI in Google Chrome prior to 87.0.4280.141 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/2021/01/stable-channel-update-for-desktop.html

https://crbug.com/1149125

https://lists.fedoraproject.org/archives/list/[email protected]/message/VVUWIJKZTZTG6G475OR6PP4WPQBVM6PS/

https://lists.fedoraproject.org/archives/list/[email protected]/message/Z6P6AVVFP7B2M4H7TJQBASRZIBLOTUFN/

https://security.gentoo.org/glsa/202101-05

https://www.debian.org/security/2021/dsa-4832

Details

Source: MITRE

Published: 2021-01-08

Updated: 2021-01-28

Type: CWE-1021

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: 9.6

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

Impact Score: 6

Exploitability Score: 2.8

Severity: CRITICAL

Tenable Plugins

View all (12 total)

IDNameProductFamilySeverity
145388Fedora 32 : chromium (2021-d9faeff8eb)NessusFedora Local Security Checks
critical
145383openSUSE Security Update : opera (openSUSE-2021-138)NessusSuSE Local Security Checks
critical
145308openSUSE Security Update : chromium (openSUSE-2021-41)NessusSuSE Local Security Checks
critical
145306openSUSE Security Update : opera (openSUSE-2021-139)NessusSuSE Local Security Checks
critical
145304openSUSE Security Update : chromium (openSUSE-2021-40)NessusSuSE Local Security Checks
critical
145194Debian DSA-4832-1 : chromium - security updateNessusDebian Local Security Checks
critical
145131Fedora 33 : chromium (2021-79926272ce)NessusFedora Local Security Checks
critical
144833GLSA-202101-05 : Chromium, Google Chrome: Multiple vulnerabilitiesNessusGentoo Local Security Checks
critical
144823FreeBSD : chromium -- multiple vulnerabilities (d153c4d2-50f8-11eb-8046-3065ec8fd3ec)NessusFreeBSD Local Security Checks
critical
144809Microsoft Edge (Chromium) < 87.0.664.75 Multiple VulnerabilitiesNessusWindows
critical
144782Google Chrome < 87.0.4280.141 Multiple VulnerabilitiesNessusMacOS X Local Security Checks
critical
144781Google Chrome < 87.0.4280.141 Multiple VulnerabilitiesNessusWindows
critical