Ubuntu.comUB:CVE-2020-27837CVE-2020-27837
6.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
6.4 Medium
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
0.001 Low
EPSS
Percentile
33.3%
A flaw was found in GDM in versions prior to 3.38.2.1. A race condition in
the handling of session shutdown makes it possible to bypass the lock
screen for a user that has autologin enabled, accessing their session
without authentication. This is similar to CVE-2017-12164, but requires
more difficult conditions to exploit.
Bugs
Notes
| Author | Note |
|---|---|
| mdeslaur | unlikely scenario, requires autologin to be enabled and for a session to crash but then still work. Setting priority to “low” |
Related
6.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
6.4 Medium
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
0.001 Low
EPSS
Percentile
33.3%