CVE-2021-21223

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

Integer overflow in Mojo in Google Chrome prior to 90.0.4430.85 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

References

https://crbug.com/1195308

https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop_20.html

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-190

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 (8 total)

IDNameProductFamilySeverity
150103openSUSE Security Update : opera (openSUSE-2021-712)NessusSuSE Local Security Checks
critical
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
148939Microsoft Edge (Chromium) < 90.0.818.46 Multiple VulnerabilitiesNessusWindows
critical
148931FreeBSD : chromium -- multiple vulnerabilities (cb13a765-a277-11eb-97a0-e09467587c17)NessusFreeBSD Local Security Checks
critical
148849Google Chrome < 90.0.4430.85 Multiple VulnerabilitiesNessusMacOS X Local Security Checks
critical
148848Google Chrome < 90.0.4430.85 Multiple VulnerabilitiesNessusWindows
critical