CVE-2020-1712
Published: 05 February 2020
A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages.
Priority
Medium
CVSS 3 base score: 7.8
Status
| Package | Release | Status |
|---|---|---|
|
systemd Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.10 (Groovy Gorilla) |
Released
(244.1-0ubuntu3)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Released
(244.1-0ubuntu3)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(237-3ubuntu10.38)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(229-4ubuntu21.27)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Needs triage
|
|
|
Patches: Upstream: https://github.com/poettering/systemd/commits/polkit-ref-count Upstream: https://github.com/systemd/systemd/commit/ea0d0ede03c6f18dbc5036c5e9cccf97e415ccc2 |
||