Ubuntu.comUB:CVE-2021-20315CVE-2021-20315
3.6 Low
CVSS2
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
6.1 Medium
CVSS3
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
0.001 Low
EPSS
Percentile
20.4%
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.
Notes
| Author | Note |
|---|---|
| alexmurray | This issue was specific to Centos 8 Stream, in particular as a result of the backport done in https://bugzilla.redhat.com/show_bug.cgi?id=1651378 so does not affect gnome-shell as packaged in Ubuntu |
Related
3.6 Low
CVSS2
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
6.1 Medium
CVSS3
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
0.001 Low
EPSS
Percentile
20.4%