CVE-2020-16125
Published: 3 November 2020
gdm3 versions before 3.36.2 or 3.38.2 would start gnome-initial-setup if gdm3 can't contact the accountservice service via dbus in a timely manner; on Ubuntu (and potentially derivatives) this could be be chained with an additional issue that could allow a local user to create a new privileged account.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
gdm3 Launchpad, Ubuntu, Debian |
bionic |
Released
(3.28.3-0ubuntu18.04.6)
|
| focal |
Released
(3.36.3-0ubuntu0.20.04.2)
|
|
| groovy |
Released
(3.38.1-2ubuntu1.1)
|
|
| hirsute |
Released
(3.38.1-2ubuntu1.1)
|
|
| impish |
Released
(3.38.1-2ubuntu1.1)
|
|
| jammy |
Released
(3.38.1-2ubuntu1.1)
|
|
| kinetic |
Released
(3.38.1-2ubuntu1.1)
|
|
| lunar |
Released
(3.38.1-2ubuntu1.1)
|
|
| mantic |
Released
(3.38.1-2ubuntu1.1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Needed
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.8 |
| Attack vector | Physical |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |