CVE-2021-21122

Publication date 9 February 2021

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

Description

Use after free in Blink in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Read the notes from the security team

Status

Package Ubuntu Release Status
chromium-browser 20.10 groovy
Not affected
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 89.0.4389.82-0ubuntu0.18.04.1
16.04 LTS xenial
Fixed 89.0.4389.82-0ubuntu0.16.04.1
14.04 LTS trusty Not in release

Notes

alexmurray

The Debian chromium source package is called chromium-browser in Ubuntu

mdeslaur

starting with Ubuntu 19.10, the chromium-browser package is just a script that installs the Chromium snap

Severity score breakdown

Parameter Value
Base score 8.8 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Other references