Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2019-3844

Published: 26 April 2019

It was discovered that a systemd service that uses DynamicUser property can get new privileges through the execution of SUID binaries, which would allow to create binaries owned by the service transient group with the setgid bit set. A local attacker may use this flaw to access resources that will be owned by a potentially different service in the future, when the GID will be recycled.

Priority

Low

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
systemd
Launchpad, Ubuntu, Debian
bionic
Released (237-3ubuntu10.38)
cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Not vulnerable
(242-7ubuntu3.2)
upstream Needs triage

xenial Not vulnerable
(code not present)
Patches:
upstream: https://github.com/systemd/systemd/commit/bf65b7e0c9fc215897b676ab9a7c9d1c688143ba

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