Ubuntu.comUB:CVE-2017-12164CVE-2017-12164
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:3.0/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 discovered in gdm 3.24.1 where gdm greeter was no longer setting
the ran_once boolean during autologin. If autologin was enabled for a
victim, an attacker could simply select ‘login as another user’ to unlock
their screen.
Bugs
- <https://bugzilla.redhat.com/show_bug.cgi?id=1490417>
- <https://bugzilla.gnome.org/show_bug.cgi?id=783779>
Notes
| Author | Note |
|---|---|
| leosilva | according with RHEL it’s a side effect introduced in gdm-3.24.1 affecting only artful and zesty. |
| mdeslaur | introduced by ff98b2817014684ae1acec78ff06f0f461a56a9f |
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:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
0.001 Low
EPSS
Percentile
33.3%