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ubuntucveUbuntu.comUB:CVE-2021-21202
HistoryApr 26, 2021 - 12:00 a.m.

CVE-2021-21202

2021-04-2600:00:00
ubuntu.com
ubuntu.com
7

8.6 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.001 Low

EPSS

Percentile

42.4%

Use after free in extensions in Google Chrome prior to 90.0.4430.72 allowed
an attacker who convinced a user to install a malicious extension to
potentially perform a sandbox escape via a crafted Chrome Extension.

Notes

Author Note
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
OSVersionArchitecturePackageVersionFilename
ubuntu16.04noarchchromium-browser< 90.0.4430.72-0ubuntu0.16.04.1UNKNOWN
ubuntu18.04noarchchromium-browser< 90.0.4430.72-0ubuntu0.18.04.1UNKNOWN

8.6 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.001 Low

EPSS

Percentile

42.4%

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