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nvd[email protected]NVD:CVE-2021-20315
HistoryFeb 18, 2022 - 6:15 p.m.

CVE-2021-20315

2022-02-1818:15:08
CWE-667
web.nvd.nist.gov
2
flaw
gnome-shell
locked system

CVSS2

3.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

6.1

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

20.2%

A locking protection bypass flaw was found in some versions of gnome-shell as shipped within CentOS Stream 8, when the “Application menu” or “Window list” GNOME extensions are enabled. This flaw allows a physical attacker who has access to a locked system to kill existing applications and start new ones as the locked user, even if the session is still locked.

Affected configurations

Nvd
Node
gnomegnome-shellRange<3.32.2
Node
centosstreamMatch8
VendorProductVersionCPE
gnomegnome-shell*cpe:2.3:a:gnome:gnome-shell:*:*:*:*:*:*:*:*
centosstream8cpe:2.3:o:centos:stream:8:*:*:*:*:*:*:*

CVSS2

3.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

6.1

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

20.2%