CVE-2020-1712
high
CVSS v3
—
CVSS v2
—
VIR risk
8.0
Description
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-1712
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-1712.html
Vendor advisory: arch — https://security.archlinux.org/ASA-202002-8
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 244.2-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 244.2-1 |
| debian | bullseye | fixed | 244.2-1 |
| debian | forky | fixed | 244.2-1 |
| debian | sid | fixed | 244.2-1 |
| debian | trixie | fixed | 244.2-1 |
References
Verify integrity in audit chain (admin only). AS-IS.