CVE-2020-16126
Published: 3 November 2020
An Ubuntu-specific modification to AccountsService in versions before 0.6.55-0ubuntu13.2, among other earlier versions, improperly dropped the ruid, allowing untrusted users to send signals to AccountService, thus stopping it from handling D-Bus messages in a timely fashion.
Notes
| Author | Note |
|---|---|
| mdeslaur | This vulnerability is in an Ubuntu-specific patch and doesn't affect the upstream code. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
accountsservice Launchpad, Ubuntu, Debian |
bionic |
Released
(0.6.45-1ubuntu1.3)
|
| focal |
Released
(0.6.55-0ubuntu12~20.04.4)
|
|
| groovy |
Released
(0.6.55-0ubuntu13.2)
|
|
| trusty |
Released
(0.6.35-0ubuntu7.3+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Needs triage
|
|
| xenial |
Released
(0.6.40-2ubuntu11.6)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 3.3 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | Low |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |