Vulnerability CVE-2021-21147

Vulnerability Name:

CVE-2021-21147 (CCN-196027)

Assigned:

2020-12-21

Published:

2021-02-02

Updated:

2022-04-26

Summary:

Inappropriate implementation in Skia in Google Chrome prior to 88.0.4324.146 allowed a local attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.

CVSS v3 Severity:

4.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)
3.8 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): Low Availibility (A): None

6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): High Availibility (A): None

CVSS v2 Severity:

4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): Partial Availibility (A): None

6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:C/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): None Integrity (I): Complete Availibility (A): None

Vulnerability Type:

CWE-noinfo

Vulnerability Consequences:

Bypass Security

References:

Source: MITRE
Type: CNA
CVE-2021-21147

Source: CCN
Type: Google Chrome Releases Web site
Stable Channel Update for Desktop

Source: MISC
Type: Release Notes, Vendor Advisory
https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop.html

Source: MISC
Type: Permissions Required
https://crbug.com/1162942

Source: XF
Type: UNKNOWN
google-chrome-cve202121147-sec-bypass(196027)

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-7fb30b9381

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-05afa65d39

Source: GENTOO
Type: Third Party Advisory
GLSA-202104-08

Vulnerable Configuration:

Configuration 1:

cpe:/a:google:chrome:*:*:*:*:*:*:*:* (Version < 88.0.4324.146)

Configuration 2:

cpe:/o:fedoraproject:fedora:32:*:*:*:*:*:*:*

OR cpe:/o:fedoraproject:fedora:33:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:112066	P	chromedriver-93.0.4577.82-1.1 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:112558	P	libQt5Pdf5-5.15.6-2.1 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:106045	P	Security update for busybox (Important)	2021-10-27
oval:org.opensuse.security:def:105615	P	chromedriver-93.0.4577.82-1.1 on GA media (Moderate)	2021-10-01
oval:org.opensuse.security:def:11096	P	Security update for libqt5-qtwebengine (Important)	2021-07-09
oval:org.opensuse.security:def:103096	P	Security update for libqt5-qtwebengine (Important)	2021-07-09
oval:org.opensuse.security:def:109753	P	Security update for libqt5-qtwebengine (Important)	2021-07-09
oval:org.opensuse.security:def:96406	P	Security update for libqt5-qtwebengine (Important)	2021-07-09
oval:org.opensuse.security:def:111478	P	Security update for libqt5-qtwebengine (Important)	2021-07-05
oval:org.opensuse.security:def:109790	P	Security update for chromium (Important)	2021-02-10
oval:org.opensuse.security:def:96443	P	Security update for chromium (Important)	2021-02-10
oval:org.opensuse.security:def:11174	P	Security update for chromium (Important)	2021-02-10
oval:org.opensuse.security:def:103133	P	Security update for chromium (Important)	2021-02-10
oval:org.opensuse.security:def:111209	P	Security update for chromium (Important)	2021-02-07

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