CVE-2020-17489
Published: 11 August 2020
An issue was discovered in certain configurations of GNOME gnome-shell through 3.36.4. When logging out of an account, the password box from the login dialog reappears with the password still visible. If the user had decided to have the password shown in cleartext at login time, it is then visible for a brief moment upon a logout. (If the password were never shown in cleartext, only the password length is revealed.)
Notes
| Author | Note |
|---|---|
| mdeslaur | per upstream bug, appears to have been introduced in 3.34 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
gnome-shell Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(3.28.4-0ubuntu18.04.3)
|
| focal |
Released
(3.36.4-1ubuntu1~20.04.2)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(3.36.5-1)
|
|
| xenial |
Not vulnerable
(3.18.5-0ubuntu0.3)
|
|
|
Patches: upstream: https://gitlab.gnome.org/GNOME/gnome-shell/-/commit/13137aad9db52223e8b62cecbd3456f4a7f66f04 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 4.3 |
| Attack vector | Physical |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |