CVE-2021-21108
Publication date 8 January 2021
Last updated 25 August 2025
Ubuntu priority
Description
Use after free in media in Google Chrome prior to 87.0.4280.141 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| chromium-browser | ||
| 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 |
9.6 · Critical
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Changed |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |