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CVE-2021-21121

Published: 9 February 2021

Use after free in Omnibox in Google Chrome on Linux prior to 88.0.4324.96 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page.

Notes

AuthorNote
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

Priority

Medium

Cvss 3 Severity Score

9.6

Score breakdown

Status

Package Release Status
chromium-browser
Launchpad, Ubuntu, Debian
bionic
Released (89.0.4389.82-0ubuntu0.18.04.1)
focal Not vulnerable
(code not present)
groovy Not vulnerable
(code not present)
trusty Does not exist

upstream
Released
xenial
Released (89.0.4389.82-0ubuntu0.16.04.1)

Severity score breakdown

Parameter Value
Base score 9.6
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