CVE-2021-3939
Published: 16 November 2021
Ubuntu-specific modifications to accountsservice (in patch file debian/patches/0010-set-language.patch) caused the fallback_locale variable, pointing to static storage, to be freed, in the user_change_language_authorized_cb function. This is reachable via the SetLanguage dbus function. This is fixed in versions 0.6.55-0ubuntu12~20.04.5, 0.6.55-0ubuntu13.3, 0.6.55-0ubuntu14.1.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
accountsservice Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(0.6.45-1ubuntu1.3)
|
| focal |
Released
(0.6.55-0ubuntu12~20.04.5)
|
|
| hirsute |
Released
(0.6.55-0ubuntu13.3)
|
|
| impish |
Released
(0.6.55-0ubuntu14.1)
|
|
| jammy |
Released
(0.6.55-3ubuntu2)
|
|
| trusty |
Not vulnerable
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |