CVE-2020-1712

Publication date 5 February 2020

Last updated 18 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

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.

Status

Package Ubuntu Release Status
systemd 26.10 stonking
Fixed in 244.1-0ubuntu3
26.04 LTS resolute
Fixed in 244.1-0ubuntu3
25.10 questing
Fixed in 244.1-0ubuntu3
25.04 plucky
Fixed in 244.1-0ubuntu3
24.10 oracular
Fixed in 244.1-0ubuntu3
24.04 LTS noble
Fixed in 244.1-0ubuntu3
23.10 mantic
Fixed in 244.1-0ubuntu3
23.04 lunar
Fixed in 244.1-0ubuntu3
22.10 kinetic
Fixed in 244.1-0ubuntu3
22.04 LTS jammy
Fixed in 244.1-0ubuntu3
21.10 impish
Fixed in 244.1-0ubuntu3
21.04 hirsute
Fixed in 244.1-0ubuntu3
20.10 groovy
Fixed in 244.1-0ubuntu3
20.04 LTS focal
Fixed in 244.1-0ubuntu3
19.10 eoan
Fixed in 242-7ubuntu3.6
18.04 LTS bionic
Fixed in 237-3ubuntu10.38
16.04 LTS xenial
Fixed in 229-4ubuntu21.27
14.04 LTS trusty
Vulnerable

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
systemd

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.8 · High

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-4269-1
    • systemd vulnerabilities
    • 5 February 2020

Other references

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