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ubuntucveUbuntu.comUB:CVE-2021-30577
HistoryAug 03, 2021 - 12:00 a.m.

CVE-2021-30577

2021-08-0300:00:00
ubuntu.com
ubuntu.com
17
google chrome
installer
policy enforcement
remote attacker
local privilege escalation
crafted file

CVSS2

6.8

Attack Vector

NETWORK

Attack 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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

50.7%

Insufficient policy enforcement in Installer in Google Chrome prior to
92.0.4515.107 allowed a remote attacker to perform local privilege
escalation via a crafted file.

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
ubuntu18.04noarchchromium-browser< 92.0.4515.159-0ubuntu0.18.04.1UNKNOWN

CVSS2

6.8

Attack Vector

NETWORK

Attack 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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

50.7%